diff --git a/ge/graph/passes/mark_agnostic_pass.cc b/ge/graph/passes/mark_agnostic_pass.cc
index 00a3dad9..4fdc8e1b 100644
--- a/ge/graph/passes/mark_agnostic_pass.cc
+++ b/ge/graph/passes/mark_agnostic_pass.cc
@@ -16,6 +16,7 @@
 #include "graph/passes/mark_agnostic_pass.h"
 
 #include "graph/utils/node_utils.h"
+#include "graph/utils/tensor_utils.h"
 
 namespace ge {
 Status MarkAgnosticPass::Run(ComputeGraphPtr graph) {
@@ -47,6 +48,16 @@ Status MarkAgnosticPass::Run(ComputeGraphPtr graph) {
     }
     if (node_type == MERGE) {
       GELOGD("Mark format agnostic and continuous for merge node %s", node->GetName().c_str());
+      auto in_nodes = node->GetInAllNodes();
+      vector<NodePtr> input_nodes(in_nodes.begin(), in_nodes.end());
+      /// Enter-----------+
+      ///                 +-> Merge
+      /// NextIteration---+
+      if (input_nodes.size() == 2) {
+        if (input_nodes[0]->GetType() == ENTER && input_nodes[1]->GetType() == NEXTITERATION) {
+          continue;
+        }
+      }
       const OpDescPtr op_desc = node->GetOpDesc();
       const GeTensorDescPtr op_tensor = op_desc->MutableOutputDesc(0);
       if (op_tensor == nullptr) {
diff --git a/ge/graph/preprocess/graph_preprocess.cc b/ge/graph/preprocess/graph_preprocess.cc
index 58718c9f..b899ee83 100644
--- a/ge/graph/preprocess/graph_preprocess.cc
+++ b/ge/graph/preprocess/graph_preprocess.cc
@@ -117,6 +117,7 @@
 #include "graph/passes/variable_op_pass.h"
 #include "graph/passes/variable_prepare_op_pass.h"
 #include "graph/passes/variable_ref_delete_op_pass.h"
+#include "graph/passes/mark_agnostic_pass.h"
 
 
 namespace ge {
@@ -1700,6 +1701,7 @@ Status GraphPrepare::PrepareOptimize() {
   try {
     (void)original_graph_passes.AddPass("PrepareOptimize::ShapeOperateOpRemovePass", new ShapeOperateOpRemovePass);
     (void)original_graph_passes.AddPass("PrepareOptimize::ReplaceTransShapePass", new ReplaceTransShapePass);
+    (void)original_graph_passes.AddPass("PrepareOptimize::MarkAgnosticPass" , new MarkAgnosticPass);
   } catch (std::bad_alloc &e) {
     GELOGE(INTERNAL_ERROR, "Add pass failed, bad memory allocation occurs.");
     return INTERNAL_ERROR;