diff --git a/ge/graph/passes/data_pass.cc b/ge/graph/passes/data_pass.cc
index 38688848..c7314efb 100644
--- a/ge/graph/passes/data_pass.cc
+++ b/ge/graph/passes/data_pass.cc
@@ -23,6 +23,139 @@
 #include "register/op_registry.h"
 
 namespace ge {
+namespace {
+Status MappingSubgraphInput(const ComputeGraphPtr &graph, const std::function<int(int data_index)> &input) {
+  for (const auto &node : graph->GetDirectNode()) {
+    if (node->GetType() != DATA) {
+      continue;
+    }
+
+    int index = -1;
+    if (!AttrUtils::GetInt(node->GetOpDesc(), "index", index)) {
+      GELOGE(FAILED, "Failed to get index from data[%s]", node->GetName().c_str());
+      return FAILED;
+    }
+
+    int parent_index = input(index);
+    GELOGI("Generate subgraph input map for subgraph %s, data index %d, parent index %d",
+           graph->GetName().c_str(), index, parent_index);
+    if (!AttrUtils::SetInt(node->GetOpDesc(), ATTR_NAME_PARENT_NODE_INDEX, parent_index)) {
+      GELOGE(FAILED, "Failed to set parent index for node %s", node->GetName().c_str());
+      return FAILED;
+    }
+  }
+
+  return SUCCESS;
+}
+
+Status MappingSubgraphOutput(const ComputeGraphPtr &graph, const std::function<int(int retval_index)> &output) {
+  const auto &output_node = graph->FindFirstNodeMatchType(NETOUTPUT);
+  if (output_node == nullptr) {
+    return SUCCESS;
+  }
+
+  const auto &op_desc = output_node->GetOpDesc();
+  GE_CHECK_NOTNULL(op_desc);
+  for (auto index = 0; index < op_desc->GetInputsSize(); ++index) {
+    int parent_index = output(index);
+    GELOGI("Generate subgraph output map for subgraph %s, index %d, parent index %d",
+           graph->GetName().c_str(), index, parent_index);
+    if (parent_index == -1) {
+      continue;
+    }
+
+    GeTensorDescPtr tensor = op_desc->MutableInputDesc(index);
+    GE_CHECK_NOTNULL(tensor);
+    if (!AttrUtils::SetInt(tensor, ATTR_NAME_PARENT_NODE_INDEX, parent_index)) {
+      GELOGE(FAILED, "Failed to set parent index for graph %s", graph->GetName().c_str());
+      return FAILED;
+    }
+  }
+
+  return SUCCESS;
+}
+
+Status MappingSubgraphIndex(const ComputeGraphPtr &graph,
+                            const std::function<int(int data_index)> &input,
+                            const std::function<int(int retval_index)> &output) {
+  GE_CHECK_NOTNULL(graph);
+  GE_CHECK_NOTNULL(input);
+  GE_CHECK_NOTNULL(output);
+  if (MappingSubgraphInput(graph, input) != SUCCESS) {
+    GELOGE(FAILED, "Failed to mapping subgraph input for graph: %s", graph->GetName().c_str());
+    return FAILED;
+  }
+
+  if (MappingSubgraphOutput(graph, output) != SUCCESS) {
+    GELOGE(FAILED, "Failed to mapping subgraph output for graph: %s", graph->GetName().c_str());
+    return FAILED;
+  }
+
+  return SUCCESS;
+}
+
+Status ParseSubgraphPostFnCase(const string &subgraph_name, const ComputeGraphPtr &graph) {
+  return MappingSubgraphIndex(graph,
+      [](int data_index) { return data_index + 1; },
+      [](int retval_index) { return retval_index; });
+}
+
+Status ParseSubgraphPostFnIf(const string &subgraph_name, const ComputeGraphPtr &graph) {
+  return MappingSubgraphIndex(graph,
+      [](int data_index) { return data_index + 1; },
+      [](int retval_index) { return retval_index; });
+}
+
+Status ParseSubgraphPostFnWhile(const string &subgraph_name, const ComputeGraphPtr &graph) {
+  return MappingSubgraphIndex(graph,
+      [](int data_index) { return data_index; },
+      [&](int retval_index) { return (subgraph_name == "cond") ? -1 : retval_index; });
+}
+
+Status ParseSubgraphPostFnFor(const string &subgraph_name, const ComputeGraphPtr &graph) {
+  return MappingSubgraphIndex(graph,
+      [](int data_index) { return (data_index == 0) ? 0 : data_index + 2; },
+      [](int retval_index) { return retval_index; });
+}
+
+Status ParseSubgraphPostFnPartitionedCall(const string &subgraph_name, const ComputeGraphPtr &graph) {
+  return MappingSubgraphIndex(graph,
+      [](int data_index) { return data_index; },
+      [](int retval_index) { return retval_index; });
+}
+}
+
+Status DataPass::PostParseSubgraph(const ComputeGraphPtr &graph, const string &ir_name, const NodePtr &parent_node) {
+  using ParseSubgraphFunc = std::function<Status(const string &subgraph_name, const ComputeGraphPtr &graph)>;
+  const static std::map<string, ParseSubgraphFunc> subgraph_handle = {
+    {FOR, ParseSubgraphPostFnFor},
+    {CASE, ParseSubgraphPostFnCase},
+    {IF, ParseSubgraphPostFnIf},
+    {_IF, ParseSubgraphPostFnIf},
+    {STATELESSIF, ParseSubgraphPostFnIf},
+    {WHILE, ParseSubgraphPostFnWhile},
+    {_WHILE, ParseSubgraphPostFnWhile},
+    {STATELESSWHILE, ParseSubgraphPostFnWhile},
+    {PARTITIONEDCALL, ParseSubgraphPostFnPartitionedCall},
+    {STATEFULPARTITIONEDCALL, ParseSubgraphPostFnPartitionedCall}
+  };
+
+  auto post_func_it = subgraph_handle.find(parent_node->GetType());
+  if (post_func_it == subgraph_handle.end()) {
+    GELOGE(FAILED, "The subgraph post func for node %s type %s is null.",
+           parent_node->GetName().c_str(), parent_node->GetType().c_str());
+    return FAILED;
+  }
+
+  if (post_func_it->second(ir_name, graph) != SUCCESS) {
+    GELOGE(FAILED, "Failed to post process subgraph %s on node %s type %s",
+           graph->GetName().c_str(), parent_node->GetName().c_str(), parent_node->GetType().c_str());
+    return FAILED;
+  }
+
+  return SUCCESS;
+}
+
 Status DataPass::Run(ComputeGraphPtr compute_graph) {
   GE_CHECK_NOTNULL(compute_graph);
   if (compute_graph->GetParentNode() == nullptr) {      // for subgraph post process.
@@ -63,21 +196,6 @@ Status DataPass::Run(ComputeGraphPtr compute_graph) {
     node->GetOpDesc()->SetName(parent_node->GetName() + "_" + compute_graph->GetName() + "/" + node->GetName());
   }
 
-  auto post_func = domi::OpRegistry::Instance()->GetParseSubgraphPostFunc(parent_node->GetType());
-  if (post_func == nullptr) {
-    GELOGW("The subgraph post func for node %s type %s is null.",
-           parent_node->GetName().c_str(), parent_node->GetType().c_str());
-    return SUCCESS;
-  }
-
-  auto graph = GraphUtils::CreateGraphFromComputeGraph(compute_graph);
-  auto ret = post_func(subgraph_name, graph);
-  if (ret != SUCCESS) {
-    GELOGE(FAILED, "Failed to post-process subgraph %s on node %s type %s",
-           graph.GetName().c_str(), parent_node->GetName().c_str(), parent_node->GetType().c_str());
-    return FAILED;
-  }
-
-  return SUCCESS;
+  return PostParseSubgraph(compute_graph, subgraph_name, parent_node);
 }
 }  // namespace ge
diff --git a/ge/graph/passes/data_pass.h b/ge/graph/passes/data_pass.h
index bce2fd5a..519ae046 100644
--- a/ge/graph/passes/data_pass.h
+++ b/ge/graph/passes/data_pass.h
@@ -24,6 +24,9 @@ namespace ge {
 class DataPass : public GraphPass {
  public:
   Status Run(ge::ComputeGraphPtr graph);
+
+ private:
+  Status PostParseSubgraph(const ComputeGraphPtr &graph, const string &ir_name, const NodePtr &parent_node);
 };
 }  // namespace ge
 
diff --git a/ge/ir_build/ge_ir_build.cc b/ge/ir_build/ge_ir_build.cc
index 0043dc8e..ccf3b24e 100644
--- a/ge/ir_build/ge_ir_build.cc
+++ b/ge/ir_build/ge_ir_build.cc
@@ -17,7 +17,6 @@
 
 #include <vector>
 #include "common/auth/file_saver.h"
-#include "common/ge/tbe_plugin_manager.h"
 #include "external/register/register_types.h"
 #include "framework/common/debug/ge_log.h"
 #include "framework/common/ge_inner_error_codes.h"
@@ -163,8 +162,6 @@ graphStatus aclgrphBuildInitialize(std::map<std::string, std::string> global_opt
       GELOGE(ret, "GE initialize failed!");
       return GRAPH_FAILED;
     }
-    // for functional subgraph assign _parent_index.
-    TBEPluginManager::Instance().InitPreparation(global_options);
   }
   GELOGW("gelib has been initialized!");
   return GRAPH_SUCCESS;
@@ -172,7 +169,6 @@ graphStatus aclgrphBuildInitialize(std::map<std::string, std::string> global_opt
 
 void aclgrphBuildFinalize() {
   if (ge::GELib::GetInstance() != nullptr && ge::GELib::GetInstance()->InitFlag()) {
-    (void)TBEPluginManager::Instance().Finalize();
     (void)ge::GELib::GetInstance()->Finalize();
     return;
   }