diff --git a/mindinsight/debugger/common/exceptions/error_code.py b/mindinsight/debugger/common/exceptions/error_code.py
index 2528ae39..e87460b4 100644
--- a/mindinsight/debugger/common/exceptions/error_code.py
+++ b/mindinsight/debugger/common/exceptions/error_code.py
@@ -28,6 +28,7 @@ class DebuggerErrors(DebuggerErrorCodes):
     PARAM_TYPE_ERROR = 0 | _PARAM_ERROR_MASK
     PARAM_VALUE_ERROR = 1 | _PARAM_ERROR_MASK
     STEP_NUM_ERROR = 2 | _PARAM_ERROR_MASK
+    DEBUGGER_CONDITION_UNAVAILABLE_ERROR = 3 | _PARAM_ERROR_MASK
 
     NODE_NOT_IN_GRAPH_ERROR = 0 | _DEBUGGER_GRAPH_ERROR
     GRAPH_NOT_EXIST_ERROR = 1 | _DEBUGGER_GRAPH_ERROR
@@ -41,6 +42,7 @@ class DebuggerErrors(DebuggerErrorCodes):
     RECHECK_ERROR = 6 | _DEBUGGER_RUNNING_ERROR
     TENSOR_GRAPH_ERROR = 7 | _DEBUGGER_RUNNING_ERROR
     TENSOR_HIT_ERROR = 8 | _DEBUGGER_RUNNING_ERROR
+    SET_RECOMMEND_WATCHPOINT_ERROR = 9 | _DEBUGGER_RUNNING_ERROR
 
 
 @unique
@@ -48,6 +50,7 @@ class DebuggerErrorMsg(Enum):
     """Debugger error messages."""
     PARAM_TYPE_ERROR = "TypeError. {}"
     PARAM_VALUE_ERROR = "ValueError. {}"
+    DEBUGGER_CONDITION_UNAVAILABLE_ERROR = "Condition is unavailable. {}"
 
     GRAPH_NOT_EXIST_ERROR = "The graph does not exist."
 
@@ -59,3 +62,4 @@ class DebuggerErrorMsg(Enum):
     RECHECK_ERROR = "Recheck failed. {}"
     TENSOR_GRAPH_ERROR = "Get tensor graphs failed."
     TENSOR_HIT_ERROR = "Get tensor hits failed."
+    SET_RECOMMEND_WATCHPOINT_ERROR = "Set Recommend Watchpoints failed."
diff --git a/mindinsight/debugger/common/exceptions/exceptions.py b/mindinsight/debugger/common/exceptions/exceptions.py
index 0c27533e..060325fe 100644
--- a/mindinsight/debugger/common/exceptions/exceptions.py
+++ b/mindinsight/debugger/common/exceptions/exceptions.py
@@ -168,3 +168,25 @@ class DebuggerTensorHitError(MindInsightException):
             message=DebuggerErrorMsg.TENSOR_HIT_ERROR.value,
             http_code=400
         )
+
+
+class DebuggerSetRecommendWatchpointsError(MindInsightException):
+    """The set recommend watchpoints error in debugger module."""
+
+    def __init__(self):
+        super(DebuggerSetRecommendWatchpointsError, self).__init__(
+            error=DebuggerErrors.SET_RECOMMEND_WATCHPOINT_ERROR,
+            message=DebuggerErrorMsg.SET_RECOMMEND_WATCHPOINT_ERROR.value,
+            http_code=400
+        )
+
+
+class DebuggerConditionUnavailableError(MindInsightException):
+    """The condition unavailable error in debugger module."""
+
+    def __init__(self, msg):
+        super(DebuggerConditionUnavailableError, self).__init__(
+            error=DebuggerErrors.DEBUGGER_CONDITION_UNAVAILABLE_ERROR,
+            message=DebuggerErrorMsg.DEBUGGER_CONDITION_UNAVAILABLE_ERROR.value.format(msg),
+            http_code=400
+        )
diff --git a/mindinsight/debugger/debugger_grpc_server.py b/mindinsight/debugger/debugger_grpc_server.py
index 00055569..9122bbdf 100644
--- a/mindinsight/debugger/debugger_grpc_server.py
+++ b/mindinsight/debugger/debugger_grpc_server.py
@@ -495,7 +495,7 @@ class DebuggerGrpcServer(grpc_server_base.EventListenerServicer):
             }
             hit_params = {}
             for param in watchpoint_hit_proto.watch_condition.params:
-                if param.actual_value:
+                if param.actual_value is not None:
                     hit_params[param.name] = param.actual_value
             for i, param in enumerate(watchpoint_hit['watchpoint'].condition['params']):
                 name = param['name']
@@ -503,7 +503,7 @@ class DebuggerGrpcServer(grpc_server_base.EventListenerServicer):
                     watchpoint_hit['watchpoint'].condition['params'][i]['actual_value'] = hit_params[name]
                 else:
                     watchpoint_hit['watchpoint'].condition['params'][i]['actual_value'] = None
-            if watchpoint_hit_proto.error_code:
+            if watchpoint_hit_proto.error_code is not None:
                 watchpoint_hit['error_code'] = watchpoint_hit_proto.error_code
             watchpoint_hits.append(watchpoint_hit)
         self._received_hit = watchpoint_hits
diff --git a/mindinsight/debugger/debugger_server.py b/mindinsight/debugger/debugger_server.py
index e99a1287..13ae323f 100644
--- a/mindinsight/debugger/debugger_server.py
+++ b/mindinsight/debugger/debugger_server.py
@@ -28,7 +28,7 @@ from mindinsight.datavisual.data_transform.graph import NodeTypeEnum
 from mindinsight.datavisual.utils.tools import to_float
 from mindinsight.debugger.common.exceptions.exceptions import DebuggerParamValueError, \
     DebuggerParamTypeError, DebuggerCompareTensorError, DebuggerTensorGraphError, \
-    DebuggerTensorHitError, MindInsightException
+    DebuggerTensorHitError, DebuggerSetRecommendWatchpointsError, MindInsightException
 from mindinsight.debugger.common.log import LOGGER as log
 from mindinsight.debugger.common.utils import ServerStatus, \
     create_view_event_from_tensor_basic_info, Streams
@@ -81,10 +81,13 @@ class DebuggerServer:
             log.error("Bool param should be given for set_recommended")
             raise DebuggerParamValueError("Bool param should be given.")
         metadata_stream = self.cache_store.get_stream_handler(Streams.METADATA)
+        if metadata_stream.recommendation_confirmed:
+            log.error("User has confirmed setting recommended watchpoints")
+            raise DebuggerSetRecommendWatchpointsError()
         condition_context = ConditionContext(metadata_stream.backend, metadata_stream.step)
         log.debug("Train_id: %s, backend: %s", train_id, condition_context.backend)
         res = metadata_stream.get(['state', 'enable_recheck'])
-        if set_recommended and not metadata_stream.recommendation_confirmed:
+        if set_recommended:
             res['id'] = self._add_recommended_watchpoints(condition_context)
         metadata_stream.recommendation_confirmed = True
         return res
diff --git a/mindinsight/debugger/stream_handler/watchpoint_handler.py b/mindinsight/debugger/stream_handler/watchpoint_handler.py
index 3436f63c..6d7f25ce 100644
--- a/mindinsight/debugger/stream_handler/watchpoint_handler.py
+++ b/mindinsight/debugger/stream_handler/watchpoint_handler.py
@@ -25,6 +25,10 @@ from mindinsight.debugger.stream_cache.watchpoint import Watchpoint, WatchpointH
 from mindinsight.debugger.stream_handler.base_handler import StreamHandlerBase
 
 
+RANGE_START = 'range_start_inclusive'
+RANGE_END = 'range_end_inclusive'
+
+
 class WatchpointHandler(StreamHandlerBase):
     """Watchpoint Handler."""
 
@@ -446,7 +450,7 @@ class WatchpointHitHandler(StreamHandlerBase):
             watch_points.append(watchpoint)
 
         if watch_points:
-            watch_points.sort(key=_watchpoint_id)
+            watch_points.sort(key=lambda watch_point: watch_point.get('id'))
             res = {
                 'slot': slot,
                 'watch_points': watch_points
@@ -540,6 +544,7 @@ def validate_watch_condition_params(condition_mgr, watch_condition):
     check_param_num = 0
     support_params = set()
     defined_support_params = set()
+    range_param = {RANGE_START: None, RANGE_END: None}
     for param in params:
         if len(param) > 2:
             log.error("Invalid param keys for condition: %s", condition_id)
@@ -573,6 +578,9 @@ def validate_watch_condition_params(condition_mgr, watch_condition):
         else:
             support_params.add(condition_param.name)
 
+        if condition_param_name in range_param:
+            range_param[condition_param_name] = param.get("value")
+
         if check_param_num > 1:
             log.error("Multiple check params for condition: %s", condition_id)
             raise DebuggerParamValueError("Multiple check params.")
@@ -581,6 +589,12 @@ def validate_watch_condition_params(condition_mgr, watch_condition):
         log.error("Invalid support params for condition: %s", condition_id)
         raise DebuggerParamValueError("Invalid support params.")
 
+    if range_param.get(RANGE_START) is not None and \
+            range_param.get(RANGE_END) is not None and range_param.get(RANGE_START) > \
+            range_param.get(RANGE_END):
+        log.error("Invalid support params for condition: %s", condition_id)
+        raise DebuggerParamValueError("Invalid support params.")
+
 
 def set_default_param(condition_mgr, watch_condition):
     """
@@ -615,10 +629,6 @@ def set_default_param(condition_mgr, watch_condition):
     return watch_condition
 
 
-def _watchpoint_id(watchpoint):
-    return watchpoint.get('id')
-
-
 def _get_error_list(error_code):
     """
     Get error list.
diff --git a/mindinsight/debugger/stream_operator/watchpoint_operator.py b/mindinsight/debugger/stream_operator/watchpoint_operator.py
index 0aa8c7e4..ad4c1dcf 100644
--- a/mindinsight/debugger/stream_operator/watchpoint_operator.py
+++ b/mindinsight/debugger/stream_operator/watchpoint_operator.py
@@ -17,7 +17,7 @@ from queue import Queue
 
 from mindinsight.debugger.common.exceptions.exceptions import DebuggerParamValueError, \
     DebuggerCreateWatchPointError, DebuggerUpdateWatchPointError, \
-    DebuggerDeleteWatchPointError
+    DebuggerDeleteWatchPointError, DebuggerConditionUnavailableError
 from mindinsight.debugger.common.log import LOGGER as log
 from mindinsight.debugger.common.utils import ServerStatus, \
     Streams, is_cst_type
@@ -81,7 +81,7 @@ class WatchpointOperator:
         condition_context = ConditionContext(metadata_stream.backend, metadata_stream.step)
         if not condition.is_available(condition_context):
             log.error("Failed to create watchpoint as the condition is not available.")
-            raise DebuggerCreateWatchPointError(
+            raise DebuggerConditionUnavailableError(
                 "Failed to create watchpoint as the condition is not available.")
 
         if condition.supported_target_type in [TargetTypeEnum.ACTIVATION, TargetTypeEnum.GRADIENT,
diff --git a/mindinsight/scripts/parse_summary.py b/mindinsight/scripts/parse_summary.py
index e885c735..0380b8d1 100644
--- a/mindinsight/scripts/parse_summary.py
+++ b/mindinsight/scripts/parse_summary.py
@@ -113,7 +113,7 @@ class Command(BaseCommand):
 
     def run(self, args):
         """
-        Execute for start command.
+        Execute for parse_summary command.
 
         Args:
             args (Namespace): Parsed arguments to hold customized parameters.