diff --git a/ge/graph/build/stream_graph_optimizer.cc b/ge/graph/build/stream_graph_optimizer.cc
index 2933d413..05049818 100644
--- a/ge/graph/build/stream_graph_optimizer.cc
+++ b/ge/graph/build/stream_graph_optimizer.cc
@@ -48,26 +48,41 @@ void StreamGraphOptimizer::RefreshNodeId(const ComputeGraphPtr &comp_graph, Grap
   }
 }
 
-bool StreamGraphOptimizer::IsSameStreamId(const ComputeGraphPtr &comp_graph) {
+bool StreamGraphOptimizer::IsSameStreamIdOrBatchLabel(const ComputeGraphPtr &comp_graph) {
   if (comp_graph == nullptr) {
     return false;
   }
   std::set<int64_t> stream_set;
+  std::set<std::string> label_set;
   for (const ge::NodePtr &cur_node : comp_graph->GetDirectNode()) {
     GE_IF_BOOL_EXEC(cur_node->GetOpDesc() == nullptr, continue);
     int64_t stream_id = cur_node->GetOpDesc()->GetStreamId();
     if (stream_id == kInvalidStream) {
       continue;
     }
-    GELOGD("Node %s in subgraph %s stream id is: %ld, node num: %zu", cur_node->GetName().c_str(),
-           comp_graph->GetName().c_str(), stream_id, comp_graph->GetDirectNodesSize());
     stream_set.insert(stream_id);
+
+    std::string batch_label;
+    if (AttrUtils::GetStr(cur_node->GetOpDesc(), ATTR_NAME_BATCH_LABEL, batch_label)) {
+      label_set.insert(batch_label);
+    } else {
+      GELOGD("Node %s[%s] has no batch label, subgraph %s, stream id: %ld", cur_node->GetName().c_str(),
+             cur_node->GetType().c_str(), comp_graph->GetName().c_str(), stream_id);
+      continue;
+    }
+
+    GELOGD("Node %s in subgraph %s stream id: %ld, node num: %zu", cur_node->GetName().c_str(),
+           comp_graph->GetName().c_str(), stream_id, comp_graph->GetDirectNodesSize());
   }
-  if (stream_set.size() > 1) {
-    GELOGI("Nodes of graph: %s have different stream id, node num: %zu, different stream num: %zu.",
+  if (stream_set.size() > 1 || label_set.size() > 1) {
+    GELOGI("Nodes of graph: %s have different stream id or batch_label, node num: %zu, different stream num: %zu.",
            comp_graph->GetName().c_str(), comp_graph->GetDirectNodesSize(), stream_set.size());
     return false;
   }
+
+  if (!label_set.empty()) {
+    (void)AttrUtils::SetStr(comp_graph, ATTR_NAME_BATCH_LABEL, *label_set.begin());
+  }
   return true;
 }
 
@@ -99,8 +114,8 @@ Status StreamGraphOptimizer::OptimizeStreamedSubGraph(const ComputeGraphPtr &com
           continue;
         }
 
-        if (!IsSameStreamId(subgraph)) {
-          GELOGI("There are more than one stream in subgraph %s", subgraph->GetName().c_str());
+        if (!IsSameStreamIdOrBatchLabel(subgraph)) {
+          GELOGI("There are more than one stream or batch_label in subgraph %s", subgraph->GetName().c_str());
           continue;
         }
         OpDescPtr op_desc = nodes.at(0)->GetOpDesc();
@@ -112,9 +127,11 @@ Status StreamGraphOptimizer::OptimizeStreamedSubGraph(const ComputeGraphPtr &com
           return FAILED;
         }
         run_context.stream = run_context.graphStreamList[stream_id];
-        GELOGD("Subgraph has same stream id, subgraph: %s, engine_name: %s, stream_id: %ld, rtstream: %lu.",
-               subgraph->GetName().c_str(), engine_name.c_str(), stream_id,
-               static_cast<uint64_t>(reinterpret_cast<uintptr_t>(run_context.stream)));
+	std::string batch_label;
+	(void)AttrUtils::GetStr(subgraph, ATTR_NAME_BATCH_LABEL, batch_label);
+        GELOGD("Subgraph has same stream id, subgraph: %s, engine_name: %s, stream_id: %ld, rtstream: %lu, "
+	       "batch_label: %s", subgraph->GetName().c_str(), engine_name.c_str(), stream_id,
+               static_cast<uint64_t>(reinterpret_cast<uintptr_t>(run_context.stream)), batch_label.c_str());
         for (auto iter = graph_optimizers.begin(); iter != graph_optimizers.end(); ++iter) {
           GE_CHECK_NOTNULL(*iter);
           Status ret = (*iter)->OptimizeStreamGraph(*subgraph, run_context);
diff --git a/ge/graph/build/stream_graph_optimizer.h b/ge/graph/build/stream_graph_optimizer.h
index b0eea135..d69fa7ba 100644
--- a/ge/graph/build/stream_graph_optimizer.h
+++ b/ge/graph/build/stream_graph_optimizer.h
@@ -41,7 +41,7 @@ class StreamGraphOptimizer {
  private:
   void RefreshNodeId(const ComputeGraphPtr &comp_graph, Graph2SubGraphInfoList &subgraph_map);
 
-  bool IsSameStreamId(const ComputeGraphPtr &comp_graph);
+  bool IsSameStreamIdOrBatchLabel(const ComputeGraphPtr &comp_graph);
 };
 }  // namespace ge
 #endif  // GE_GRAPH_BUILD_OPTIMIZE_STREAM_GRAPH_H_
diff --git a/ge/graph/build/task_generator.cc b/ge/graph/build/task_generator.cc
index b506f945..2089ad31 100755
--- a/ge/graph/build/task_generator.cc
+++ b/ge/graph/build/task_generator.cc
@@ -567,7 +567,7 @@ Status TaskGenerator::MarkFirstAndLastOps(const vector<OpDescPtr> &ops, bool is_
       continue;
     }
     string op_type = op_desc->GetType();
-    if (!is_single_stream && (!op_desc->GetSubgraphInstanceNames().empty() || separator_types.count(op_type) != 0)) {
+    if (!op_desc->GetSubgraphInstanceNames().empty() || separator_types.count(op_type) != 0) {
       continuous_op_lists.emplace_back(vector<OpDescPtr>());
     } else {
       continuous_op_lists.back().emplace_back(op_desc);
diff --git a/ge/graph/preprocess/multi_batch_copy_graph.cc b/ge/graph/preprocess/multi_batch_copy_graph.cc
index 9ab74d70..a90f145e 100644
--- a/ge/graph/preprocess/multi_batch_copy_graph.cc
+++ b/ge/graph/preprocess/multi_batch_copy_graph.cc
@@ -1407,11 +1407,13 @@ Status MultiBatchGraphCopyer::InsertIdentityAfterSwitchN() {
 }
 
 Status ProcessMultiBatch(ComputeGraphPtr &graph) {
-  const char *multi_batch_with_case = std::getenv("MULTI_BATCH_WITH_CASE");
-  if (multi_batch_with_case != nullptr) {
-    PassManager pass_manager;
-    GE_CHK_STATUS_RET(pass_manager.AddPass("MultiBatchClonePass", new (std::nothrow) MultiBatchClonePass));
-    return pass_manager.Run(graph);
+  if (GetLocalOmgContext().dynamic_node_type.empty()) {
+    const char *multi_batch_with_switchn = std::getenv("MULTI_BATCH_WITH_SWITCHN");
+    if (multi_batch_with_switchn == nullptr) {
+      PassManager pass_manager;
+      GE_CHK_STATUS_RET(pass_manager.AddPass("MultiBatchClonePass", new (std::nothrow) MultiBatchClonePass));
+      return pass_manager.Run(graph);
+    }
   }
   if (!GetLocalOmgContext().need_multi_batch) {
     GELOGI("No need to process_multi for no_train graph.");