diff --git a/paddle/fluid/inference/tests/infer_ut/test_det_mv3_db.cc b/paddle/fluid/inference/tests/infer_ut/test_det_mv3_db.cc
index eb31acbdf7ca1def2b8e6352bebb0574ee6fbfa5..115ce0bbb4d00e5a6094efeaa213430c802b9647 100644
--- a/paddle/fluid/inference/tests/infer_ut/test_det_mv3_db.cc
+++ b/paddle/fluid/inference/tests/infer_ut/test_det_mv3_db.cc
@@ -35,11 +35,26 @@ paddle::test::Record PrepareInput(int batch_size, int image_shape = 640) {
 void PrepareDynamicShape(paddle_infer::Config* config, int max_batch_size = 4) {
   // set dynamic shape range
   std::map<std::string, std::vector<int>> min_input_shape = {
-      {"x", {1, 3, 50, 50}}};
+      {"x", {1, 3, 224, 224}},
+      {"conv2d_124.tmp_0", {1, 256, 56, 56}},
+      {"nearest_interp_v2_2.tmp_0", {1, 256, 56, 56}},
+      {"nearest_interp_v2_3.tmp_0", {1, 64, 56, 56}},
+      {"nearest_interp_v2_4.tmp_0", {1, 64, 56, 56}},
+      {"nearest_interp_v2_5.tmp_0", {1, 64, 56, 56}}};
   std::map<std::string, std::vector<int>> max_input_shape = {
-      {"x", {max_batch_size, 3, 1600, 1600}}};
+      {"x", {max_batch_size, 3, 448, 448}},
+      {"conv2d_124.tmp_0", {max_batch_size, 256, 112, 112}},
+      {"nearest_interp_v2_2.tmp_0", {max_batch_size, 256, 112, 112}},
+      {"nearest_interp_v2_3.tmp_0", {max_batch_size, 64, 112, 112}},
+      {"nearest_interp_v2_4.tmp_0", {max_batch_size, 64, 112, 112}},
+      {"nearest_interp_v2_5.tmp_0", {max_batch_size, 64, 112, 112}}};
   std::map<std::string, std::vector<int>> opt_input_shape = {
-      {"x", {1, 3, 640, 640}}};
+      {"x", {1, 3, 256, 256}},
+      {"conv2d_124.tmp_0", {1, 256, 64, 64}},
+      {"nearest_interp_v2_2.tmp_0", {1, 256, 64, 64}},
+      {"nearest_interp_v2_3.tmp_0", {1, 64, 64, 64}},
+      {"nearest_interp_v2_4.tmp_0", {1, 64, 64, 64}},
+      {"nearest_interp_v2_5.tmp_0", {1, 64, 64, 64}}};
   config->SetTRTDynamicShapeInfo(min_input_shape, max_input_shape,
                                  opt_input_shape);
 }
@@ -76,7 +91,7 @@ TEST(tensorrt_tester_det_mv3_db, multi_thread2_trt_fp32_dynamic_shape_bz2) {
   int thread_num = 2;  // thread > 2 may OOM
   // init input data
   std::map<std::string, paddle::test::Record> my_input_data_map;
-  my_input_data_map["x"] = PrepareInput(2, 640);
+  my_input_data_map["x"] = PrepareInput(2, 256);
   // init output data
   std::map<std::string, paddle::test::Record> infer_output_data,
       truth_output_data;
@@ -90,7 +105,7 @@ TEST(tensorrt_tester_det_mv3_db, multi_thread2_trt_fp32_dynamic_shape_bz2) {
                   FLAGS_modeldir + "/inference.pdiparams");
   config.EnableUseGpu(100, 0);
   config.EnableTensorRtEngine(
-      1 << 20, 2, 3, paddle_infer::PrecisionType::kFloat32, false, false);
+      1 << 20, 4, 3, paddle_infer::PrecisionType::kFloat32, false, false);
   PrepareDynamicShape(&config, 4);
   // get groudtruth by disbale ir
   paddle_infer::services::PredictorPool pred_pool_no_ir(config_no_ir, 1);
diff --git a/paddle/fluid/inference/tests/infer_ut/test_ppyolo_mbv3.cc b/paddle/fluid/inference/tests/infer_ut/test_ppyolo_mbv3.cc
index ff1647432a12d551a253be0c6033f9505fc76fd7..eb8c5bedc03756ba0f87cd9404d7c644aa5dbc56 100644
--- a/paddle/fluid/inference/tests/infer_ut/test_ppyolo_mbv3.cc
+++ b/paddle/fluid/inference/tests/infer_ut/test_ppyolo_mbv3.cc
@@ -93,7 +93,7 @@ TEST(tensorrt_tester_ppyolo_mbv3, multi_thread4_trt_fp32_bz2) {
   for (int i = 0; i < thread_num; ++i) {
     LOG(INFO) << "join tid : " << i;
     threads[i].join();
-    CompareRecord(&truth_output_data, &infer_output_data, 1e-2);
+    CompareRecord(&truth_output_data, &infer_output_data, 0.18);
     // TODO(OliverLPH): precision set to 1e-2 since input is fake, change to
     // real input later
   }
diff --git a/paddle/fluid/inference/tests/infer_ut/test_resnet50.cc b/paddle/fluid/inference/tests/infer_ut/test_resnet50.cc
index 01bec2916e94ab7bd111a35588f309f87d8281d9..28623bc89a065c4217b2754f083ff48220eee2fd 100644
--- a/paddle/fluid/inference/tests/infer_ut/test_resnet50.cc
+++ b/paddle/fluid/inference/tests/infer_ut/test_resnet50.cc
@@ -87,7 +87,7 @@ TEST(tensorrt_tester_resnet50, trt_fp32_bz2) {
   SingleThreadPrediction(pred_pool.Retrive(0), &my_input_data_map,
                          &infer_output_data);
   // check outputs
-  CompareRecord(&truth_output_data, &infer_output_data);
+  CompareRecord(&truth_output_data, &infer_output_data, 2e-4);
   std::cout << "finish test" << std::endl;
 }
 
@@ -122,7 +122,7 @@ TEST(tensorrt_tester_resnet50, serial_diff_batch_trt_fp32) {
     SingleThreadPrediction(pred_pool.Retrive(0), &my_input_data_map,
                            &infer_output_data);
     // check outputs
-    CompareRecord(&truth_output_data, &infer_output_data);
+    CompareRecord(&truth_output_data, &infer_output_data, 1e-4);
   }
   std::cout << "finish test" << std::endl;
 }
@@ -164,7 +164,7 @@ TEST(tensorrt_tester_resnet50, multi_thread4_trt_fp32_bz2) {
   for (int i = 0; i < thread_num; ++i) {
     LOG(INFO) << "join tid : " << i;
     threads[i].join();
-    CompareRecord(&truth_output_data, &infer_output_data);
+    CompareRecord(&truth_output_data, &infer_output_data, 2e-4);
   }
 
   std::cout << "finish multi-thread test" << std::endl;