diff --git a/tf_adapter/tests/st/util/testcase/npu_attrs_test.cc b/tf_adapter/tests/st/util/testcase/npu_attrs_test.cc
index aff1db6be2906e962335ca2b6db7f871898b51d2..1b9b91e134e14ab831987269ef67915da5515479 100644
--- a/tf_adapter/tests/st/util/testcase/npu_attrs_test.cc
+++ b/tf_adapter/tests/st/util/testcase/npu_attrs_test.cc
@@ -84,6 +84,22 @@ TEST_F(NpuAttrTest, CheckAoeMode) {
   EXPECT_EQ(s.ok(), false);
 }
 
+TEST_F(NpuAttrTest, CheckPrecisionMode ) {
+  GraphOptimizationPassOptions options;
+  SessionOptions session_options;
+  session_options.config.mutable_graph_options()->mutable_optimizer_options()->set_do_function_inlining(true);
+  auto *custom_config =
+      session_options.config.mutable_graph_options()->mutable_rewrite_options()->add_custom_optimizers();
+  custom_config->set_name("NpuOptimizer");
+  options.session_options = &session_options;
+
+  AttrValue precision_mode = AttrValue();
+  precision_mode.set_s("force_Dp32");
+  (*custom_config->mutable_parameter_map())["precision_mode"] = precision_mode;
+  Status s = NpuAttrs::SetNpuOptimizerAttr(options, nullptr);
+  EXPECT_EQ(s.ok(), false);
+}
+
 TEST_F(NpuAttrTest, GetDumpPath) {
   setenv("DUMP_GRAPH_PATH", "./", 1);
   string path = GetDumpPath();
diff --git a/tf_adapter/tests/ut/util/testcase/npu_attrs_test.cc b/tf_adapter/tests/ut/util/testcase/npu_attrs_test.cc
index cf6b30c7005601f0c9fbaad7b0aa12863223ab14..dc796242b1b1124ae18f82b45bb9b545786cb5c3 100644
--- a/tf_adapter/tests/ut/util/testcase/npu_attrs_test.cc
+++ b/tf_adapter/tests/ut/util/testcase/npu_attrs_test.cc
@@ -85,6 +85,22 @@ TEST_F(NpuAttrTest, CheckAoeMode) {
   EXPECT_EQ(s.ok(), false);
 }
 
+TEST_F(NpuAttrTest, CheckPrecisionMode ) {
+  GraphOptimizationPassOptions options;
+  SessionOptions session_options;
+  session_options.config.mutable_graph_options()->mutable_optimizer_options()->set_do_function_inlining(true);
+  auto *custom_config =
+      session_options.config.mutable_graph_options()->mutable_rewrite_options()->add_custom_optimizers();
+  custom_config->set_name("NpuOptimizer");
+  options.session_options = &session_options;
+
+  AttrValue precision_mode = AttrValue();
+  precision_mode.set_s("force_Dp32");
+  (*custom_config->mutable_parameter_map())["precision_mode"] = precision_mode;
+  Status s = NpuAttrs::SetNpuOptimizerAttr(options, nullptr);
+  EXPECT_EQ(s.ok(), false);
+}
+
 TEST_F(NpuAttrTest, GetDumpPath) {
 setenv("DUMP_GRAPH_PATH", "./", 1);
 string path = GetDumpPath();
diff --git a/tf_adapter/util/npu_attrs.cc b/tf_adapter/util/npu_attrs.cc
index 630da0290fb6720f052744780406a2d1ca8eb19d..9c214dcf8129f403dba1b6b81727b3346d78defa 100644
--- a/tf_adapter/util/npu_attrs.cc
+++ b/tf_adapter/util/npu_attrs.cc
@@ -1732,6 +1732,16 @@ Status NpuAttrs::SetNpuOptimizerAttr(const GraphOptimizationPassOptions &options
       }
       if (params.count("precision_mode") > 0) {
         precision_mode = params.at("precision_mode").s();
+        if (precision_mode != "force_fp32" && precision_mode != "allow_fp32_to_fp16" &&
+            precision_mode != "force_fp16" && precision_mode != "must_keep_origin_dtype" &&
+            precision_mode != "allow_mix_precision") {
+          ADP_LOG(ERROR) << "precision_mode should be force_fp32, allow_fp32_to_fp16, force_fp16, "
+                            "must_keep_origin_dtype or allow_mix_precision";
+          LOG(ERROR) << "precision_mode should be force_fp32, allow_fp32_to_fp16, force_fp16, must_keep_origin_dtype "
+                        "or allow_mix_precision";
+          return errors::Internal("precision_mode should be force_fp32, allow_fp32_to_fp16, force_fp16, "
+                                  "must_keep_origin_dtype or allow_mix_precision");
+        }
       } else {
         if (static_cast<bool>(graph_run_mode)) {
           precision_mode = "allow_fp32_to_fp16";
diff --git a/tf_adapter_2.x/npu_device/core/npu_device.cpp b/tf_adapter_2.x/npu_device/core/npu_device.cpp
index f1d6f0f8e7dad5c623bb148175e9078f8eac7540..1849e34ddaaca2606467bf894a82bf41bcc1b547 100644
--- a/tf_adapter_2.x/npu_device/core/npu_device.cpp
+++ b/tf_adapter_2.x/npu_device/core/npu_device.cpp
@@ -808,7 +808,7 @@ void NpuDevice::RunGeGraphAsync(TFE_Context *context, uint64_t graph_id, int num
       if (err_msg.empty()) {
         err_msg = "<unknown error> code:" + std::to_string(s);
       }
-      done(tensorflow::errors::Internal("Graph engine process graph failed: ", err_msg));
+      done(tensorflow::errors::Internal("Graph engine process graph failed:\n", err_msg));
       return;
     } else if (ge_outputs.size() != static_cast<std::size_t>(num_outputs)) {
       done(tensorflow::errors::Internal("Graph engine process graph succeed but output num ", ge_outputs.size(),
diff --git a/tf_adapter_2.x/npu_device/core/npu_micros.h b/tf_adapter_2.x/npu_device/core/npu_micros.h
index cfeeb4ee06241189296b84df1d92f48809a685ce..933ef44a8c51a399b35660ede228f36eb2bc4d20 100644
--- a/tf_adapter_2.x/npu_device/core/npu_micros.h
+++ b/tf_adapter_2.x/npu_device/core/npu_micros.h
@@ -79,7 +79,7 @@
       if (err_msg.empty()) {                                            \
         err_msg = "<unknown error> code:" + std::to_string(_status);    \
       }                                                                 \
-      CTX->status = tensorflow::errors::Internal(PREFIX, ":", err_msg); \
+      CTX->status = tensorflow::errors::Internal(PREFIX, ":\n", err_msg); \
       LOG(ERROR) << CTX->status.ToString();                             \
       return;                                                           \
     }                                                                   \
@@ -93,7 +93,7 @@
       if (err_msg.empty()) {                                              \
         err_msg = "<unknown error> code:" + std::to_string(_status);      \
       }                                                                   \
-      (CTX)->status = tensorflow::errors::Internal(PREFIX, ":", err_msg); \
+      (CTX)->status = tensorflow::errors::Internal(PREFIX, ":\n", err_msg); \
       LOG(ERROR) << (CTX)->status.ToString();                             \
       return RET;                                                         \
     }                                                                     \