diff --git a/ge/graph/build/memory/graph_mem_assigner.cc b/ge/graph/build/memory/graph_mem_assigner.cc
index 1824b913..b9f80070 100755
--- a/ge/graph/build/memory/graph_mem_assigner.cc
+++ b/ge/graph/build/memory/graph_mem_assigner.cc
@@ -486,6 +486,15 @@ Status GraphMemoryAssigner::UpdateRefOpOffsetReverse(const NodePtr &node) {
     auto peer_op_desc = peer_node->GetOpDesc();
     GE_CHECK_NOTNULL(peer_op_desc);
     vector<int64_t> peer_output_list = peer_op_desc->GetOutputOffset();
+    if ((peer_out_anchor->GetIdx() >= static_cast<int>(peer_output_list.size()))
+        || (out2in.first >= static_cast<int32_t>(output_list.size()))) {
+      GELOGW("out of range, peer_out_anchor:%d, peer_output_list size:%zu, out2in:%d, output_list size:%zu",
+             peer_out_anchor->GetIdx(),
+             peer_output_list.size(),
+             out2in.first,
+             output_list.size());
+      continue;
+    }
     peer_output_list.at(peer_out_anchor->GetIdx()) = output_list.at(out2in.first);
     peer_op_desc->SetOutputOffset(peer_output_list);
     GELOGD("UpdateRefOpOffsetReverse: Node[%s] output[%d] is set from node[%s] output index[%d] offset[%ld]",
diff --git a/tests/ut/ge/graph/build/mem_assigner_unittest.cc b/tests/ut/ge/graph/build/mem_assigner_unittest.cc
index 92f9b5b4..c883e87f 100644
--- a/tests/ut/ge/graph/build/mem_assigner_unittest.cc
+++ b/tests/ut/ge/graph/build/mem_assigner_unittest.cc
@@ -339,3 +339,25 @@ TEST_F(UtestMemoryAssignerTest, graph_memory_assign_set_input_offset) {
   EXPECT_EQ(assgin->GetOpDesc()->GetInputOffset()[1], 0);
   EXPECT_EQ(memoryAssigner.CheckOffset(), GRAPH_SUCCESS);
 }
+
+TEST_F(UtestMemoryAssignerTest, graph_memory_assign_update_ref_op_offset_reverse) {
+    ge::ut::GraphBuilder builder("graph");
+    auto data_input = builder.AddNode("data", "Data", 1, 1);
+    auto const_input = builder.AddNode("const", "Const", 1, 1);
+    auto add = builder.AddNode("add", "Add", 2, 1);
+     // add link
+    builder.AddDataEdge(data_input, 0, add, 0);
+    builder.AddDataEdge(const_input, 0, add, 1);
+    // set ref
+    uint32_t reuse_input_index = 0;
+    auto output_tensordesc = data_input->GetOpDesc()->MutableOutputDesc(0);
+    ge::TensorUtils::SetReuseInput(*output_tensordesc, true);
+    ge::TensorUtils::SetReuseInputIndex(*output_tensordesc, reuse_input_index);
+    auto output_tensordesc1 = add->GetOpDesc()->MutableOutputDesc(0);
+    ge::TensorUtils::SetReuseInput(*output_tensordesc1, true);
+    ge::TensorUtils::SetReuseInputIndex(*output_tensordesc1, reuse_input_index);
+    ge::ComputeGraphPtr graph = builder.GetGraph();
+
+    GraphMemoryAssigner memoryAssigner(graph);
+    EXPECT_EQ(memoryAssigner.UpdateRefOpOffsetReverse(add), SUCCESS);
+}