diff --git a/source/base/src/main/java/com/jd/blockchain/consts/DataCodes.java b/source/base/src/main/java/com/jd/blockchain/consts/DataCodes.java
index 9e76d988..f27c5258 100644
--- a/source/base/src/main/java/com/jd/blockchain/consts/DataCodes.java
+++ b/source/base/src/main/java/com/jd/blockchain/consts/DataCodes.java
@@ -60,7 +60,7 @@ public interface DataCodes {
 	public static final int ENUM_LEDGER_PERMISSION = 0x402;
 	public static final int ENUM_MULTI_ROLES_POLICY = 0x403;
 	
-	public static final int ROLE_PRIVILEGE = 0x410;
+	public static final int PRIVILEGE_SET = 0x410;
 	
 	public static final int ROLE_SET = 0x411;
 	
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/LedgerAdminAccount.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/LedgerAdminAccount.java
index 1e494766..d1522ea5 100644
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/LedgerAdminAccount.java
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/LedgerAdminAccount.java
@@ -1,7 +1,5 @@
 package com.jd.blockchain.ledger.core;
 
-import com.jd.blockchain.ledger.LedgerMetadata;
-import com.jd.blockchain.ledger.LedgerSettings;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -13,6 +11,9 @@ import com.jd.blockchain.crypto.HashFunction;
 import com.jd.blockchain.ledger.LedgerAdminInfo;
 import com.jd.blockchain.ledger.LedgerException;
 import com.jd.blockchain.ledger.LedgerInitSetting;
+import com.jd.blockchain.ledger.LedgerMetadata;
+import com.jd.blockchain.ledger.LedgerMetadata_V2;
+import com.jd.blockchain.ledger.LedgerSettings;
 import com.jd.blockchain.ledger.ParticipantNode;
 import com.jd.blockchain.storage.service.ExPolicyKVStorage;
 import com.jd.blockchain.storage.service.ExPolicyKVStorage.ExPolicy;
@@ -31,11 +32,13 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 	public static final String LEDGER_META_PREFIX = "MTA" + LedgerConsts.KEY_SEPERATOR;
 	public static final String LEDGER_PARTICIPANT_PREFIX = "PAR" + LedgerConsts.KEY_SEPERATOR;
 	public static final String LEDGER_SETTING_PREFIX = "SET" + LedgerConsts.KEY_SEPERATOR;
-	public static final String LEDGER_PRIVILEGE_PREFIX = "PRL" + LedgerConsts.KEY_SEPERATOR;
+	public static final String ROLE_PRIVILEGE_PREFIX = "RPV" + LedgerConsts.KEY_SEPERATOR;
+	public static final String USER_ROLE_PREFIX = "URO" + LedgerConsts.KEY_SEPERATOR;
 
 	private final Bytes metaPrefix;
 	private final Bytes settingPrefix;
-	private final Bytes privilegePrefix;
+	private final Bytes rolePrivilegePrefix;
+	private final Bytes userRolePrefix;
 
 	private LedgerMetadata origMetadata;
 
@@ -56,6 +59,10 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 	 */
 	private ParticipantDataSet participants;
 
+	private RolePrivilegeDataSet rolePrivileges;
+
+	private UserRoleDataSet userRoles;
+
 	/**
 	 * 账本参数配置；
 	 */
@@ -82,6 +89,14 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 		return readonly;
 	}
 
+	public RolePrivilegeSettings getRolePrivileges() {
+		return rolePrivileges;
+	}
+
+	public UserRoleSettings getUserRoles() {
+		return userRoles;
+	}
+
 	/**
 	 * 初始化账本的管理账户；
 	 * 
@@ -99,7 +114,8 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 			VersioningKVStorage versioningStorage) {
 		this.metaPrefix = Bytes.fromString(keyPrefix + LEDGER_META_PREFIX);
 		this.settingPrefix = Bytes.fromString(keyPrefix + LEDGER_SETTING_PREFIX);
-		this.privilegePrefix = Bytes.fromString(keyPrefix + LEDGER_PRIVILEGE_PREFIX);
+		this.rolePrivilegePrefix = Bytes.fromString(keyPrefix + ROLE_PRIVILEGE_PREFIX);
+		this.userRolePrefix = Bytes.fromString(keyPrefix + USER_ROLE_PREFIX);
 
 		ParticipantNode[] parties = initSetting.getConsensusParticipants();
 		if (parties.length == 0) {
@@ -134,6 +150,14 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 			this.participants.addConsensusParticipant(p);
 		}
 
+		String rolePrivilegePrefix = keyPrefix + ROLE_PRIVILEGE_PREFIX;
+		this.rolePrivileges = new RolePrivilegeDataSet(this.settings.getCryptoSetting(), rolePrivilegePrefix,
+				exPolicyStorage, versioningStorage);
+
+		String userRolePrefix = keyPrefix + USER_ROLE_PREFIX;
+		this.userRoles = new UserRoleDataSet(this.settings.getCryptoSetting(), userRolePrefix, exPolicyStorage,
+				versioningStorage);
+
 		// 初始化其它属性；
 		this.storage = exPolicyStorage;
 		this.readonly = false;
@@ -143,7 +167,8 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 			VersioningKVStorage versioningKVStorage, boolean readonly) {
 		this.metaPrefix = Bytes.fromString(keyPrefix + LEDGER_META_PREFIX);
 		this.settingPrefix = Bytes.fromString(keyPrefix + LEDGER_SETTING_PREFIX);
-		this.privilegePrefix = Bytes.fromString(keyPrefix + LEDGER_PRIVILEGE_PREFIX);
+		this.rolePrivilegePrefix = Bytes.fromString(keyPrefix + ROLE_PRIVILEGE_PREFIX);
+		this.userRolePrefix = Bytes.fromString(keyPrefix + USER_ROLE_PREFIX);
 		this.storage = kvStorage;
 		this.readonly = readonly;
 		this.origMetadata = loadAndVerifyMetadata(adminAccountHash);
@@ -167,6 +192,14 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 		String partiPrefix = keyPrefix + LEDGER_PARTICIPANT_PREFIX;
 		this.participants = new ParticipantDataSet(metadata.getParticipantsHash(), previousSettings.getCryptoSetting(),
 				partiPrefix, kvStorage, versioningKVStorage, readonly);
+
+		String rolePrivilegePrefix = keyPrefix + ROLE_PRIVILEGE_PREFIX;
+		this.rolePrivileges = new RolePrivilegeDataSet(metadata.getRolePrivilegesHash(),
+				previousSettings.getCryptoSetting(), rolePrivilegePrefix, kvStorage, versioningKVStorage, readonly);
+
+		String userRolePrefix = keyPrefix + USER_ROLE_PREFIX;
+		this.userRoles = new UserRoleDataSet(metadata.getUserRolesHash(), previousSettings.getCryptoSetting(),
+				userRolePrefix, kvStorage, versioningKVStorage, readonly);
 	}
 
 	private LedgerSettings loadAndVerifySettings(HashDigest settingsHash) {
@@ -304,6 +337,15 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 		participants.commit();
 		metadata.setParticipantsHash(participants.getRootHash());
 
+		// 计算并更新角色权限集合的根哈希；
+		rolePrivileges.commit();
+		metadata.setRolePrivilegesHash(rolePrivileges.getRootHash());
+
+		// 计算并更新用户角色授权集合的根哈希；
+		userRoles.commit();
+		metadata.setUserRolesHash(userRoles.getRootHash());
+
+		// 当前区块上下文的密码参数设置的哈希函数；
 		HashFunction hashFunc = Crypto.getHashFunction(previousSettings.getCryptoSetting().getHashAlgorithm());
 
 		// 计算并更新参数配置的哈希；
@@ -367,7 +409,7 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 		metadata = new LedgerMetadataImpl(origMetadata);
 	}
 
-	public static class LedgerMetadataImpl implements LedgerMetadata {
+	public static class LedgerMetadataImpl implements LedgerMetadata_V2 {
 
 		private byte[] seed;
 
@@ -377,6 +419,10 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 
 		private HashDigest settingsHash;
 
+		private HashDigest rolePrivilegesHash;
+
+		private HashDigest userRolesHash;
+
 		public LedgerMetadataImpl() {
 		}
 
@@ -402,6 +448,16 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 			return participantsHash;
 		}
 
+		@Override
+		public HashDigest getRolePrivilegesHash() {
+			return rolePrivilegesHash;
+		}
+
+		@Override
+		public HashDigest getUserRolesHash() {
+			return userRolesHash;
+		}
+
 		public void setSeed(byte[] seed) {
 			this.seed = seed;
 		}
@@ -413,6 +469,14 @@ public class LedgerAdminAccount implements Transactional, LedgerAdminInfo {
 		public void setParticipantsHash(HashDigest participantsHash) {
 			this.participantsHash = participantsHash;
 		}
+
+		public void setRolePrivilegesHash(HashDigest rolePrivilegesHash) {
+			this.rolePrivilegesHash = rolePrivilegesHash;
+		}
+
+		public void setUserRolesHash(HashDigest userRolesHash) {
+			this.userRolesHash = userRolesHash;
+		}
 	}
 
 }
\ No newline at end of file
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/LedgerSecurityManager.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/LedgerSecurityManager.java
index fc8151f3..c9cbf359 100644
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/LedgerSecurityManager.java
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/LedgerSecurityManager.java
@@ -22,11 +22,11 @@ public class LedgerSecurityManager {
 		throw new IllegalStateException("Not implemented!");
 	}
 	
-	public RolePrivilegeAuthorization setRole(String role, LedgerPrivilege privilege) {
+	public RolePrivileges setRole(String role, LedgerPrivilege privilege) {
 		throw new IllegalStateException("Not implemented!");
 	}
 
-	public RolePrivilegeAuthorization getRole(String role) {
+	public RolePrivileges getRole(String role) {
 		throw new IllegalStateException("Not implemented!");
 	}
 	
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PermissionService.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PermissionService.java
index b3b9a7c2..78be086b 100644
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PermissionService.java
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PermissionService.java
@@ -1,7 +1,5 @@
 package com.jd.blockchain.ledger.core;
 
-import java.util.SortedSet;
-
 public interface PermissionService {
 	
 	boolean checkLedgerPermission();
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PrivilegeDataSet.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PrivilegeDataSet.java
deleted file mode 100644
index 9bdc3f3b..00000000
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PrivilegeDataSet.java
+++ /dev/null
@@ -1,21 +0,0 @@
-//package com.jd.blockchain.ledger.core;
-//
-//import com.jd.blockchain.crypto.hash.HashDigest;
-//import com.jd.blockchain.ledger.data.DigitalSignatureBlob;
-//
-//import my.utils.io.ExistentialKVStorage;
-//import my.utils.io.VersioningKVStorage;
-//
-//public class PrivilegeDataSet extends GenericMerkleDataSet<Authorization, AuthorizationVO> {
-//
-//	public PrivilegeDataSet(CryptoSetting setting, ExistentialKVStorage merkleTreeStorage, VersioningKVStorage dataStorage) {
-//		this(null, setting, merkleTreeStorage, dataStorage, false);
-//	}
-//
-//	public PrivilegeDataSet(HashDigest rootHash, CryptoSetting setting, ExistentialKVStorage merkleTreeStorage,
-//			VersioningKVStorage dataStorage, boolean readonly) {
-//		super(rootHash, setting, merkleTreeStorage, dataStorage, readonly, Authorization.class, AuthorizationVO.class,
-//				DigitalSignatureBlob.class);
-//	}
-//
-//}
\ No newline at end of file
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilege.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PrivilegeSet.java
similarity index 83%
rename from source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilege.java
rename to source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PrivilegeSet.java
index e40649b2..aa22efd2 100644
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilege.java
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/PrivilegeSet.java
@@ -11,8 +11,8 @@ import com.jd.blockchain.consts.DataCodes;
  * @author huanghaiquan
  *
  */
-@DataContract(code = DataCodes.ROLE_PRIVILEGE, name = "ROLE-PRIVILEGE")
-public interface RolePrivilege {
+@DataContract(code = DataCodes.PRIVILEGE_SET, name = "PRIVILEGE-SET")
+public interface PrivilegeSet {
 
 	@DataField(order = 1, primitiveType = PrimitiveType.BYTES)
 	LedgerPrivilege getLedgerPrivilege();
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RoleDataSet.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RoleDataSet.java
deleted file mode 100644
index 6fb3ee65..00000000
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RoleDataSet.java
+++ /dev/null
@@ -1,175 +0,0 @@
-package com.jd.blockchain.ledger.core;
-
-import com.jd.blockchain.binaryproto.BinaryProtocol;
-import com.jd.blockchain.crypto.HashDigest;
-import com.jd.blockchain.ledger.CryptoSetting;
-import com.jd.blockchain.ledger.LedgerException;
-import com.jd.blockchain.storage.service.ExPolicyKVStorage;
-import com.jd.blockchain.storage.service.VersioningKVEntry;
-import com.jd.blockchain.storage.service.VersioningKVStorage;
-import com.jd.blockchain.utils.Bytes;
-import com.jd.blockchain.utils.Transactional;
-
-public class RoleDataSet implements Transactional, MerkleProvable {
-
-	/**
-	 * 角色名称的最大 Unicode 字符数；
-	 */
-	public static final int MAX_ROLE_NAME_LENGTH = 20;
-
-	private MerkleDataSet dataset;
-
-	public RoleDataSet(CryptoSetting cryptoSetting, String prefix, ExPolicyKVStorage exPolicyStorage,
-			VersioningKVStorage verStorage) {
-		dataset = new MerkleDataSet(cryptoSetting, prefix, exPolicyStorage, verStorage);
-	}
-
-	public RoleDataSet(HashDigest merkleRootHash, CryptoSetting cryptoSetting, String prefix,
-			ExPolicyKVStorage exPolicyStorage, VersioningKVStorage verStorage, boolean readonly) {
-		dataset = new MerkleDataSet(merkleRootHash, cryptoSetting, prefix, exPolicyStorage, verStorage, readonly);
-	}
-
-	@Override
-	public HashDigest getRootHash() {
-		return dataset.getRootHash();
-	}
-
-	@Override
-	public MerkleProof getProof(Bytes key) {
-		return dataset.getProof(key);
-	}
-
-	@Override
-	public boolean isUpdated() {
-		return dataset.isUpdated();
-	}
-
-	@Override
-	public void commit() {
-		dataset.commit();
-	}
-
-	@Override
-	public void cancel() {
-		dataset.cancel();
-	}
-
-	public long getRoleCount() {
-		return dataset.getDataCount();
-	}
-
-	/**
-	 * 加入新的角色授权； <br>
-	 * 
-	 * 如果指定的角色已经存在，则引发 {@link LedgerException} 异常；
-	 * 
-	 * @param roleName        角色名称；不能超过 {@link #MAX_ROLE_NAME_LENGTH} 个 Unicode 字符；
-	 * @param ledgerPrivilege
-	 * @param txPrivilege
-	 */
-	public void addRoleAuthorization(String roleName, LedgerPrivilege ledgerPrivilege,
-			TransactionPrivilege txPrivilege) {
-		RolePrivilegeAuthorization roleAuth = new RolePrivilegeAuthorization(roleName, -1, ledgerPrivilege, txPrivilege);
-		long nv = innerSetRoleAuthorization(roleAuth);
-		if (nv < 0) {
-			throw new LedgerException("Role[" + roleName + "] already exist!");
-		}
-	}
-
-	/**
-	 * 设置角色授权； <br>
-	 * 如果版本校验不匹配，则返回 -1；
-	 * 
-	 * @param roleAuth
-	 * @return
-	 */
-	public long innerSetRoleAuthorization(RolePrivilegeAuthorization roleAuth) {
-		if (roleAuth.getRoleName().length() > MAX_ROLE_NAME_LENGTH) {
-			throw new LedgerException("Too long role name!");
-		}
-		Bytes key = encodeKey(roleAuth.getRoleName());
-		byte[] privilegeBytes = BinaryProtocol.encode(roleAuth, RolePrivilege.class);
-		return dataset.setValue(key, privilegeBytes, roleAuth.getVersion());
-	}
-
-	/**
-	 * 更新角色授权； <br>
-	 * 如果指定的角色不存在，或者版本不匹配，则引发 {@link LedgerException} 异常；
-	 * 
-	 * @param participant
-	 */
-	public void updateRoleAuthorization(RolePrivilegeAuthorization roleAuth) {
-		long nv = innerSetRoleAuthorization(roleAuth);
-		if (nv < 0) {
-			throw new LedgerException("Update to RoleAuthorization[" + roleAuth.getRoleName()
-					+ "] failed due to wrong version[" + roleAuth.getVersion() + "] !");
-		}
-	}
-
-	/**
-	 * 授权角色指定的权限； <br>
-	 * 如果角色不存在，则返回 -1；
-	 * 
-	 * @param participant
-	 */
-	public long authorizePermissions(String roleName, LedgerPermission... permissions) {
-		RolePrivilegeAuthorization roleAuth = getRoleAuthorization(roleName);
-		if (roleAuth == null) {
-			return -1;
-		}
-		roleAuth.getLedgerPrivilege().enable(permissions);
-		return innerSetRoleAuthorization(roleAuth);
-	}
-
-	/**
-	 * 授权角色指定的权限； <br>
-	 * 如果角色不存在，则返回 -1；
-	 * 
-	 * @param participant
-	 */
-	public long authorizePermissions(String roleName, TransactionPermission... permissions) {
-		RolePrivilegeAuthorization roleAuth = getRoleAuthorization(roleName);
-		if (roleAuth == null) {
-			return -1;
-		}
-		roleAuth.getTransactionPrivilege().enable(permissions);
-		return innerSetRoleAuthorization(roleAuth);
-	}
-
-	private Bytes encodeKey(String address) {
-		// return id + "";
-		return Bytes.fromString(address);
-	}
-
-	/**
-	 * 查询角色授权；
-	 * 
-	 * <br>
-	 * 如果不存在，则返回 null；
-	 * 
-	 * @param address
-	 * @return
-	 */
-	public RolePrivilegeAuthorization getRoleAuthorization(String roleName) {
-		// 只返回最新版本；
-		Bytes key = encodeKey(roleName);
-		VersioningKVEntry kv = dataset.getDataEntry(key);
-		if (kv == null) {
-			return null;
-		}
-		RolePrivilege privilege = BinaryProtocol.decode(kv.getValue());
-		return new RolePrivilegeAuthorization(roleName, kv.getVersion(), privilege);
-	}
-
-	public RolePrivilegeAuthorization[] getRoleAuthorizations() {
-		VersioningKVEntry[] kvEntries = dataset.getLatestDataEntries(0, (int) dataset.getDataCount());
-		RolePrivilegeAuthorization[] pns = new RolePrivilegeAuthorization[kvEntries.length];
-		RolePrivilege privilege;
-		for (int i = 0; i < pns.length; i++) {
-			privilege = BinaryProtocol.decode(kvEntries[i].getValue());
-			pns[i] = new RolePrivilegeAuthorization(kvEntries[i].getKey().toUTF8String(), kvEntries[i].getVersion(), privilege);
-		}
-		return pns;
-	}
-
-}
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeDataSet.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeDataSet.java
new file mode 100644
index 00000000..327a4d3f
--- /dev/null
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeDataSet.java
@@ -0,0 +1,270 @@
+package com.jd.blockchain.ledger.core;
+
+import com.jd.blockchain.binaryproto.BinaryProtocol;
+import com.jd.blockchain.crypto.HashDigest;
+import com.jd.blockchain.ledger.CryptoSetting;
+import com.jd.blockchain.ledger.LedgerException;
+import com.jd.blockchain.storage.service.ExPolicyKVStorage;
+import com.jd.blockchain.storage.service.VersioningKVEntry;
+import com.jd.blockchain.storage.service.VersioningKVStorage;
+import com.jd.blockchain.utils.Bytes;
+import com.jd.blockchain.utils.Transactional;
+
+public class RolePrivilegeDataSet implements Transactional, MerkleProvable, RolePrivilegeSettings {
+
+	/**
+	 * 角色名称的最大 Unicode 字符数；
+	 */
+	public static final int MAX_ROLE_NAME_LENGTH = 20;
+
+	private MerkleDataSet dataset;
+
+	public RolePrivilegeDataSet(CryptoSetting cryptoSetting, String prefix, ExPolicyKVStorage exPolicyStorage,
+			VersioningKVStorage verStorage) {
+		dataset = new MerkleDataSet(cryptoSetting, prefix, exPolicyStorage, verStorage);
+	}
+
+	public RolePrivilegeDataSet(HashDigest merkleRootHash, CryptoSetting cryptoSetting, String prefix,
+			ExPolicyKVStorage exPolicyStorage, VersioningKVStorage verStorage, boolean readonly) {
+		dataset = new MerkleDataSet(merkleRootHash, cryptoSetting, prefix, exPolicyStorage, verStorage, readonly);
+	}
+
+	@Override
+	public HashDigest getRootHash() {
+		return dataset.getRootHash();
+	}
+
+	@Override
+	public MerkleProof getProof(Bytes key) {
+		return dataset.getProof(key);
+	}
+
+	@Override
+	public boolean isUpdated() {
+		return dataset.isUpdated();
+	}
+
+	@Override
+	public void commit() {
+		dataset.commit();
+	}
+
+	@Override
+	public void cancel() {
+		dataset.cancel();
+	}
+
+	@Override
+	public long getRoleCount() {
+		return dataset.getDataCount();
+	}
+
+	/**
+	 * 加入新的角色授权； <br>
+	 * 
+	 * 如果指定的角色已经存在，则引发 {@link LedgerException} 异常；
+	 * 
+	 * @param roleName        角色名称；不能超过 {@link #MAX_ROLE_NAME_LENGTH} 个 Unicode 字符；
+	 * @param ledgerPrivilege
+	 * @param txPrivilege
+	 */
+	@Override
+	public void addRolePrivilege(String roleName, LedgerPrivilege ledgerPrivilege, TransactionPrivilege txPrivilege) {
+		RolePrivileges roleAuth = new RolePrivileges(roleName, -1, ledgerPrivilege,
+				txPrivilege);
+		long nv = setRolePrivilege(roleAuth);
+		if (nv < 0) {
+			throw new LedgerException("Role[" + roleName + "] already exist!");
+		}
+	}
+
+	/**
+	 * 设置角色授权； <br>
+	 * 如果版本校验不匹配，则返回 -1；
+	 * 
+	 * @param roleAuth
+	 * @return
+	 */
+	private long setRolePrivilege(RolePrivileges roleAuth) {
+		if (roleAuth.getRoleName().length() > MAX_ROLE_NAME_LENGTH) {
+			throw new LedgerException("Too long role name!");
+		}
+		Bytes key = encodeKey(roleAuth.getRoleName());
+		byte[] privilegeBytes = BinaryProtocol.encode(roleAuth, PrivilegeSet.class);
+		return dataset.setValue(key, privilegeBytes, roleAuth.getVersion());
+	}
+
+	/**
+	 * 更新角色授权； <br>
+	 * 如果指定的角色不存在，或者版本不匹配，则引发 {@link LedgerException} 异常；
+	 * 
+	 * @param participant
+	 */
+	@Override
+	public void updateRolePrivilege(RolePrivileges roleAuth) {
+		long nv = setRolePrivilege(roleAuth);
+		if (nv < 0) {
+			throw new LedgerException("Update to RoleAuthorization[" + roleAuth.getRoleName()
+					+ "] failed due to wrong version[" + roleAuth.getVersion() + "] !");
+		}
+	}
+
+	/**
+	 * 授权角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName    角色；
+	 * @param permissions 权限列表；
+	 * @return
+	 */
+	@Override
+	public long enablePermissions(String roleName, LedgerPermission... permissions) {
+		RolePrivileges roleAuth = getRolePrivilege(roleName);
+		if (roleAuth == null) {
+			return -1;
+		}
+		roleAuth.getLedgerPrivilege().enable(permissions);
+		return setRolePrivilege(roleAuth);
+	}
+
+	/**
+	 * 授权角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName    角色；
+	 * @param permissions 权限列表；
+	 * @return
+	 */
+	@Override
+	public long enablePermissions(String roleName, TransactionPermission... permissions) {
+		RolePrivileges roleAuth = getRolePrivilege(roleName);
+		if (roleAuth == null) {
+			return -1;
+		}
+		roleAuth.getTransactionPrivilege().enable(permissions);
+		return setRolePrivilege(roleAuth);
+	}
+	
+	/**
+	 * 禁止角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName    角色；
+	 * @param permissions 权限列表；
+	 * @return
+	 */
+	@Override
+	public long disablePermissions(String roleName, LedgerPermission... permissions) {
+		RolePrivileges roleAuth = getRolePrivilege(roleName);
+		if (roleAuth == null) {
+			return -1;
+		}
+		roleAuth.getLedgerPrivilege().disable(permissions);
+		return setRolePrivilege(roleAuth);
+	}
+	
+	/**
+	 * 禁止角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName    角色；
+	 * @param permissions 权限列表；
+	 * @return
+	 */
+	@Override
+	public long disablePermissions(String roleName, TransactionPermission... permissions) {
+		RolePrivileges roleAuth = getRolePrivilege(roleName);
+		if (roleAuth == null) {
+			return -1;
+		}
+		roleAuth.getTransactionPrivilege().disable(permissions);
+		return setRolePrivilege(roleAuth);
+	}
+
+	/**
+	 * 授权角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName
+	 * @param ledgerPermissions
+	 * @param txPermissions
+	 * @return
+	 */
+	@Override
+	public long enablePermissions(String roleName, LedgerPermission[] ledgerPermissions,
+			TransactionPermission[] txPermissions) {
+		RolePrivileges roleAuth = getRolePrivilege(roleName);
+		if (roleAuth == null) {
+			return -1;
+		}
+		roleAuth.getLedgerPrivilege().enable(ledgerPermissions);
+		roleAuth.getTransactionPrivilege().enable(txPermissions);
+		return setRolePrivilege(roleAuth);
+	}
+
+	/**
+	 * 禁用角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName
+	 * @param ledgerPermissions
+	 * @param txPermissions
+	 * @return
+	 */
+	@Override
+	public long disablePermissions(String roleName, LedgerPermission[] ledgerPermissions,
+			TransactionPermission[] txPermissions) {
+		RolePrivileges roleAuth = getRolePrivilege(roleName);
+		if (roleAuth == null) {
+			return -1;
+		}
+		roleAuth.getLedgerPrivilege().disable(ledgerPermissions);
+		roleAuth.getTransactionPrivilege().disable(txPermissions);
+		return setRolePrivilege(roleAuth);
+	}
+
+	private Bytes encodeKey(String address) {
+		// return id + "";
+		return Bytes.fromString(address);
+	}
+
+	/**
+	 * 查询角色授权；
+	 * 
+	 * <br>
+	 * 如果不存在，则返回 null；
+	 * 
+	 * @param address
+	 * @return
+	 */
+	@Override
+	public RolePrivileges getRolePrivilege(String roleName) {
+		// 只返回最新版本；
+		Bytes key = encodeKey(roleName);
+		VersioningKVEntry kv = dataset.getDataEntry(key);
+		if (kv == null) {
+			return null;
+		}
+		PrivilegeSet privilege = BinaryProtocol.decode(kv.getValue());
+		return new RolePrivileges(roleName, kv.getVersion(), privilege);
+	}
+	
+	@Override
+	public RolePrivileges[] getRolePrivileges(int index, int count) {
+		VersioningKVEntry[] kvEntries = dataset.getLatestDataEntries(index, count);
+		RolePrivileges[] pns = new RolePrivileges[kvEntries.length];
+		PrivilegeSet privilege;
+		for (int i = 0; i < pns.length; i++) {
+			privilege = BinaryProtocol.decode(kvEntries[i].getValue());
+			pns[i] = new RolePrivileges(kvEntries[i].getKey().toUTF8String(), kvEntries[i].getVersion(),
+					privilege);
+		}
+		return pns;
+	}
+
+	@Override
+	public RolePrivileges[] getRolePrivileges() {
+		return getRolePrivileges(0, (int) getRoleCount());
+	}
+
+}
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeSettings.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeSettings.java
new file mode 100644
index 00000000..d900e002
--- /dev/null
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeSettings.java
@@ -0,0 +1,107 @@
+package com.jd.blockchain.ledger.core;
+
+import com.jd.blockchain.ledger.LedgerException;
+
+public interface RolePrivilegeSettings {
+
+	long getRoleCount();
+
+	/**
+	 * 加入新的角色授权； <br>
+	 * 
+	 * 如果指定的角色已经存在，则引发 {@link LedgerException} 异常；
+	 * 
+	 * @param roleName        角色名称；不能超过 {@link #MAX_ROLE_NAME_LENGTH} 个 Unicode 字符；
+	 * @param ledgerPrivilege
+	 * @param txPrivilege
+	 */
+	void addRolePrivilege(String roleName, LedgerPrivilege ledgerPrivilege, TransactionPrivilege txPrivilege);
+
+	/**
+	 * 更新角色授权； <br>
+	 * 如果指定的角色不存在，或者版本不匹配，则引发 {@link LedgerException} 异常；
+	 * 
+	 * @param participant
+	 */
+	void updateRolePrivilege(RolePrivileges roleAuth);
+
+	/**
+	 * 授权角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName    角色；
+	 * @param permissions 权限列表；
+	 * @return
+	 */
+	long enablePermissions(String roleName, LedgerPermission... permissions);
+
+	/**
+	 * 授权角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName    角色；
+	 * @param permissions 权限列表；
+	 * @return
+	 */
+	long enablePermissions(String roleName, TransactionPermission... permissions);
+
+	/**
+	 * 禁止角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName    角色；
+	 * @param permissions 权限列表；
+	 * @return
+	 */
+	long disablePermissions(String roleName, LedgerPermission... permissions);
+
+	/**
+	 * 禁止角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName    角色；
+	 * @param permissions 权限列表；
+	 * @return
+	 */
+	long disablePermissions(String roleName, TransactionPermission... permissions);
+
+	/**
+	 * 授权角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName
+	 * @param ledgerPermissions
+	 * @param txPermissions
+	 * @return
+	 */
+	long enablePermissions(String roleName, LedgerPermission[] ledgerPermissions,
+			TransactionPermission[] txPermissions);
+
+	/**
+	 * 禁用角色指定的权限； <br>
+	 * 如果角色不存在，则返回 -1；
+	 * 
+	 * @param roleName
+	 * @param ledgerPermissions
+	 * @param txPermissions
+	 * @return
+	 */
+	long disablePermissions(String roleName, LedgerPermission[] ledgerPermissions,
+			TransactionPermission[] txPermissions);
+
+	/**
+	 * 查询角色授权；
+	 * 
+	 * <br>
+	 * 如果不存在，则返回 null；
+	 * 
+	 * @param address
+	 * @return
+	 */
+	RolePrivileges getRolePrivilege(String roleName);
+
+	RolePrivileges[] getRolePrivileges(int index, int count);
+
+	RolePrivileges[] getRolePrivileges();
+
+}
\ No newline at end of file
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeAuthorization.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivileges.java
similarity index 77%
rename from source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeAuthorization.java
rename to source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivileges.java
index b73f940c..e2c4f8a5 100644
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivilegeAuthorization.java
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/RolePrivileges.java
@@ -6,7 +6,7 @@ package com.jd.blockchain.ledger.core;
  * @author huanghaiquan
  *
  */
-public class RolePrivilegeAuthorization implements RolePrivilege {
+public class RolePrivileges implements PrivilegeSet {
 
 	private String roleName;
 
@@ -16,21 +16,21 @@ public class RolePrivilegeAuthorization implements RolePrivilege {
 
 	private TransactionPrivilege txPrivilege;
 
-	public RolePrivilegeAuthorization(String roleName, long version) {
+	public RolePrivileges(String roleName, long version) {
 		this.roleName = roleName;
 		this.version = version;
 		this.ledgerPrivilege = new LedgerPrivilege();
 		this.txPrivilege = new TransactionPrivilege();
 	}
 
-	public RolePrivilegeAuthorization(String roleName, long version, RolePrivilege privilege) {
+	public RolePrivileges(String roleName, long version, PrivilegeSet privilege) {
 		this.roleName = roleName;
 		this.version = version;
 		this.ledgerPrivilege = privilege.getLedgerPrivilege();
 		this.txPrivilege = privilege.getTransactionPrivilege();
 	}
 
-	public RolePrivilegeAuthorization(String roleName, long version, LedgerPrivilege ledgerPrivilege, TransactionPrivilege txPrivilege) {
+	public RolePrivileges(String roleName, long version, LedgerPrivilege ledgerPrivilege, TransactionPrivilege txPrivilege) {
 		this.roleName = roleName;
 		this.version = version;
 		this.ledgerPrivilege = ledgerPrivilege;
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoleDataSet.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoleDataSet.java
index e4ddb63e..36b6b633 100644
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoleDataSet.java
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoleDataSet.java
@@ -10,7 +10,7 @@ import com.jd.blockchain.storage.service.VersioningKVStorage;
 import com.jd.blockchain.utils.Bytes;
 import com.jd.blockchain.utils.Transactional;
 
-public class UserRoleDataSet implements Transactional, MerkleProvable {
+public class UserRoleDataSet implements Transactional, MerkleProvable, UserRoleSettings {
 
 	/**
 	 * 角色名称的最大 Unicode 字符数；
@@ -54,6 +54,7 @@ public class UserRoleDataSet implements Transactional, MerkleProvable {
 		dataset.cancel();
 	}
 
+	@Override
 	public long getRoleCount() {
 		return dataset.getDataCount();
 	}
@@ -67,10 +68,11 @@ public class UserRoleDataSet implements Transactional, MerkleProvable {
 	 * @param rolesPolicy
 	 * @param roles
 	 */
+	@Override
 	public void addUserRoles(Bytes userAddress, RolesPolicy rolesPolicy, String... roles) {
-		UserRolesAuthorization roleAuth = new UserRolesAuthorization(userAddress, -1, rolesPolicy);
+		UserRoles roleAuth = new UserRoles(userAddress, -1, rolesPolicy);
 		roleAuth.addRoles(roles);
-		long nv = innerSetUserRolesAuthorization(roleAuth);
+		long nv = setUserRolesAuthorization(roleAuth);
 		if (nv < 0) {
 			throw new LedgerException("Roles authorization of User[" + userAddress + "] already exists!");
 		}
@@ -83,7 +85,7 @@ public class UserRoleDataSet implements Transactional, MerkleProvable {
 	 * @param userRoles
 	 * @return
 	 */
-	public long innerSetUserRolesAuthorization(UserRolesAuthorization userRoles) {
+	private long setUserRolesAuthorization(UserRoles userRoles) {
 		byte[] rolesetBytes = BinaryProtocol.encode(userRoles, RoleSet.class);
 		return dataset.setValue(userRoles.getUserAddress(), rolesetBytes, userRoles.getVersion());
 	}
@@ -94,8 +96,9 @@ public class UserRoleDataSet implements Transactional, MerkleProvable {
 	 * 
 	 * @param userRoles
 	 */
-	public void updateUserRolesAuthorization(UserRolesAuthorization userRoles) {
-		long nv = innerSetUserRolesAuthorization(userRoles);
+	@Override
+	public void updateUserRoles(UserRoles userRoles) {
+		long nv = setUserRolesAuthorization(userRoles);
 		if (nv < 0) {
 			throw new LedgerException("Update to roles of user[" + userRoles.getUserAddress()
 					+ "] failed due to wrong version[" + userRoles.getVersion() + "] !");
@@ -111,14 +114,15 @@ public class UserRoleDataSet implements Transactional, MerkleProvable {
 	 * @param roles       角色列表；
 	 * @return
 	 */
+	@Override
 	public long setRoles(Bytes userAddress, RolesPolicy policy, String... roles) {
-		UserRolesAuthorization userRoles = getUserRolesAuthorization(userAddress);
+		UserRoles userRoles = getUserRoles(userAddress);
 		if (userRoles == null) {
-			userRoles = new UserRolesAuthorization(userAddress, -1, policy);
+			userRoles = new UserRoles(userAddress, -1, policy);
 		}
 		userRoles.setPolicy(policy);
 		userRoles.setRoles(roles);
-		return innerSetUserRolesAuthorization(userRoles);
+		return setUserRolesAuthorization(userRoles);
 	}
 
 	/**
@@ -130,24 +134,25 @@ public class UserRoleDataSet implements Transactional, MerkleProvable {
 	 * @param address
 	 * @return
 	 */
-	public UserRolesAuthorization getUserRolesAuthorization(Bytes userAddress) {
+	@Override
+	public UserRoles getUserRoles(Bytes userAddress) {
 		// 只返回最新版本；
 		VersioningKVEntry kv = dataset.getDataEntry(userAddress);
 		if (kv == null) {
 			return null;
 		}
 		RoleSet roleSet = BinaryProtocol.decode(kv.getValue());
-		return new UserRolesAuthorization(userAddress, kv.getVersion(), roleSet);
+		return new UserRoles(userAddress, kv.getVersion(), roleSet);
 	}
 
-	public RolePrivilegeAuthorization[] getRoleAuthorizations() {
+	@Override
+	public UserRoles[] getRoleAuthorizations() {
 		VersioningKVEntry[] kvEntries = dataset.getLatestDataEntries(0, (int) dataset.getDataCount());
-		RolePrivilegeAuthorization[] pns = new RolePrivilegeAuthorization[kvEntries.length];
-		RolePrivilege privilege;
+		UserRoles[] pns = new UserRoles[kvEntries.length];
+		RoleSet roleset;
 		for (int i = 0; i < pns.length; i++) {
-			privilege = BinaryProtocol.decode(kvEntries[i].getValue());
-			pns[i] = new RolePrivilegeAuthorization(kvEntries[i].getKey().toUTF8String(), kvEntries[i].getVersion(),
-					privilege);
+			roleset = BinaryProtocol.decode(kvEntries[i].getValue());
+			pns[i] = new UserRoles(kvEntries[i].getKey(), kvEntries[i].getVersion(), roleset);
 		}
 		return pns;
 	}
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoleSettings.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoleSettings.java
new file mode 100644
index 00000000..d720aa59
--- /dev/null
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoleSettings.java
@@ -0,0 +1,53 @@
+package com.jd.blockchain.ledger.core;
+
+import com.jd.blockchain.ledger.LedgerException;
+import com.jd.blockchain.utils.Bytes;
+
+public interface UserRoleSettings {
+
+	long getRoleCount();
+
+	/**
+	 * 加入新的用户角色授权； <br>
+	 * 
+	 * 如果该用户的授权已经存在，则引发 {@link LedgerException} 异常；
+	 * 
+	 * @param userAddress
+	 * @param rolesPolicy
+	 * @param roles
+	 */
+	void addUserRoles(Bytes userAddress, RolesPolicy rolesPolicy, String... roles);
+
+	/**
+	 * 更新用户角色授权； <br>
+	 * 如果指定用户的授权不存在，或者版本不匹配，则引发 {@link LedgerException} 异常；
+	 * 
+	 * @param userRoles
+	 */
+	void updateUserRoles(UserRoles userRoles);
+
+	/**
+	 * 设置用户的角色； <br>
+	 * 如果用户的角色授权不存在，则创建新的授权；
+	 * 
+	 * @param userAddress 用户；
+	 * @param policy      角色策略；
+	 * @param roles       角色列表；
+	 * @return
+	 */
+	long setRoles(Bytes userAddress, RolesPolicy policy, String... roles);
+
+	/**
+	 * 查询角色授权；
+	 * 
+	 * <br>
+	 * 如果不存在，则返回 null；
+	 * 
+	 * @param address
+	 * @return
+	 */
+	UserRoles getUserRoles(Bytes userAddress);
+
+	UserRoles[] getRoleAuthorizations();
+
+}
\ No newline at end of file
diff --git a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRolesAuthorization.java b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoles.java
similarity index 86%
rename from source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRolesAuthorization.java
rename to source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoles.java
index bc038827..57ec2110 100644
--- a/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRolesAuthorization.java
+++ b/source/ledger/ledger-core/src/main/java/com/jd/blockchain/ledger/core/UserRoles.java
@@ -5,7 +5,7 @@ import java.util.TreeSet;
 
 import com.jd.blockchain.utils.Bytes;
 
-public class UserRolesAuthorization implements RoleSet {
+public class UserRoles implements RoleSet {
 
 	private Bytes userAddress;
 
@@ -15,14 +15,14 @@ public class UserRolesAuthorization implements RoleSet {
 
 	private long version;
 
-	public UserRolesAuthorization(Bytes userAddress, long version, RolesPolicy policy) {
+	public UserRoles(Bytes userAddress, long version, RolesPolicy policy) {
 		this.userAddress = userAddress;
 		this.version = version;
 		this.policy = policy;
 		this.roles = new TreeSet<String>();
 	}
 
-	public UserRolesAuthorization(Bytes userAddress, long version, RoleSet roleSet) {
+	public UserRoles(Bytes userAddress, long version, RoleSet roleSet) {
 		this.userAddress = userAddress;
 		this.version = version;
 		this.policy = roleSet.getPolicy();
diff --git a/source/ledger/ledger-model/src/main/java/com/jd/blockchain/ledger/LedgerMetadata_V2.java b/source/ledger/ledger-model/src/main/java/com/jd/blockchain/ledger/LedgerMetadata_V2.java
index 1fbe075e..01ce182f 100644
--- a/source/ledger/ledger-model/src/main/java/com/jd/blockchain/ledger/LedgerMetadata_V2.java
+++ b/source/ledger/ledger-model/src/main/java/com/jd/blockchain/ledger/LedgerMetadata_V2.java
@@ -8,7 +8,7 @@ import com.jd.blockchain.crypto.HashDigest;
 
 /**
  * {@link LedgerMetadata_V2} 是 {@link LedgerMetadata} 的升级版本，新增加了
- * {@link #getPrivilegeHash()} 属性；
+ * {@link #getRolePrivilegesHash()} 属性；
  * 
  * @author huanghaiquan
  *
@@ -17,11 +17,19 @@ import com.jd.blockchain.crypto.HashDigest;
 public interface LedgerMetadata_V2 extends LedgerMetadata {
 
 	/**
-	 * 加入新的版本；
+	 * 角色权限集合的根哈希；；
 	 * 
 	 * @return
 	 */
 	@DataField(order = 4, primitiveType = PrimitiveType.BYTES)
-	HashDigest getPrivilegeHash();
+	HashDigest getRolePrivilegesHash();
+
+	/**
+	 * 用户角色授权集合的根哈希；
+	 * 
+	 * @return
+	 */
+	@DataField(order = 5, primitiveType = PrimitiveType.BYTES)
+	HashDigest getUserRolesHash();
 
 }