diff --git a/mindspore/lite/tools/optimizer/common/gllo_utils.cc b/mindspore/lite/tools/optimizer/common/gllo_utils.cc
index 273585031fd..feb98505391 100644
--- a/mindspore/lite/tools/optimizer/common/gllo_utils.cc
+++ b/mindspore/lite/tools/optimizer/common/gllo_utils.cc
@@ -469,6 +469,9 @@ AbstractBasePtr GetCNodeInputAbstract(const CNodePtr &cnode, size_t index) {
   if (utils::isa<ParameterPtr>(input)) {
     auto parameter = input->cast<ParameterPtr>();
     abstract = parameter->abstract();
+  } else if (utils::isa<ValueNodePtr>(input)) {
+    auto value_node = input->cast<ValueNodePtr>();
+    abstract = value_node->abstract();
   } else if (utils::isa<CNodePtr>(input)) {
     auto input_cnode = input->cast<CNodePtr>();
     if (CheckPrimitiveType(input_cnode, prim::kPrimTupleGetItem)) {
diff --git a/mindspore/lite/tools/optimizer/graph/redundant_op_remove_pass.cc b/mindspore/lite/tools/optimizer/graph/redundant_op_remove_pass.cc
index a76d9dbb116..93f294857b1 100644
--- a/mindspore/lite/tools/optimizer/graph/redundant_op_remove_pass.cc
+++ b/mindspore/lite/tools/optimizer/graph/redundant_op_remove_pass.cc
@@ -255,8 +255,8 @@ int RemoveRedundantOpPass::RemoveDropoutOp(const AnfNodePtr &anf_node, const Fun
       }
       auto get_index = CastToInt(get_index_node->value()).front();
       if (get_index > 0 && !manager->node_users()[node].empty()) {
-        MS_LOG(ERROR) << "dropout's second output is useful.";
-        return lite::RET_ERROR;
+        MS_LOG(DEBUG) << "dropout's second output is useful.";
+        continue;
       }
       manager->Replace(node, cnode->input(1));
     }