diff --git a/deploy/cpp_infer/src/ocr_cls.cpp b/deploy/cpp_infer/src/ocr_cls.cpp
index 674630bf1e..827ddef593 100644
--- a/deploy/cpp_infer/src/ocr_cls.cpp
+++ b/deploy/cpp_infer/src/ocr_cls.cpp
@@ -112,6 +112,8 @@ void Classifier::LoadModel(const std::string &model_dir) {
         precision = paddle_infer::Config::Precision::kInt8;
       }
       config.EnableTensorRtEngine(1 << 20, 10, 3, precision, false, false);
+      config.CollectShapeRangeInfo("./trt_shape.txt");
+      config.EnableTunedTensorRtDynamicShape("./trt_shape.txt", true);
     }
   } else {
     config.DisableGpu();
diff --git a/deploy/cpp_infer/src/ocr_det.cpp b/deploy/cpp_infer/src/ocr_det.cpp
index 56de195186..41a97c81ce 100644
--- a/deploy/cpp_infer/src/ocr_det.cpp
+++ b/deploy/cpp_infer/src/ocr_det.cpp
@@ -32,49 +32,10 @@ void DBDetector::LoadModel(const std::string &model_dir) {
       if (this->precision_ == "int8") {
         precision = paddle_infer::Config::Precision::kInt8;
       }
-      config.EnableTensorRtEngine(1 << 20, 1, 20, precision, false, false);
-      std::map<std::string, std::vector<int>> min_input_shape = {
-          {"x", {1, 3, 50, 50}},
-          {"conv2d_92.tmp_0", {1, 120, 20, 20}},
-          {"conv2d_91.tmp_0", {1, 24, 10, 10}},
-          {"conv2d_59.tmp_0", {1, 96, 20, 20}},
-          {"nearest_interp_v2_1.tmp_0", {1, 256, 10, 10}},
-          {"nearest_interp_v2_2.tmp_0", {1, 256, 20, 20}},
-          {"conv2d_124.tmp_0", {1, 256, 20, 20}},
-          {"nearest_interp_v2_3.tmp_0", {1, 64, 20, 20}},
-          {"nearest_interp_v2_4.tmp_0", {1, 64, 20, 20}},
-          {"nearest_interp_v2_5.tmp_0", {1, 64, 20, 20}},
-          {"elementwise_add_7", {1, 56, 2, 2}},
-          {"nearest_interp_v2_0.tmp_0", {1, 256, 2, 2}}};
-      std::map<std::string, std::vector<int>> max_input_shape = {
-          {"x", {1, 3, 1536, 1536}},
-          {"conv2d_92.tmp_0", {1, 120, 400, 400}},
-          {"conv2d_91.tmp_0", {1, 24, 200, 200}},
-          {"conv2d_59.tmp_0", {1, 96, 400, 400}},
-          {"nearest_interp_v2_1.tmp_0", {1, 256, 200, 200}},
-          {"nearest_interp_v2_2.tmp_0", {1, 256, 400, 400}},
-          {"conv2d_124.tmp_0", {1, 256, 400, 400}},
-          {"nearest_interp_v2_3.tmp_0", {1, 64, 400, 400}},
-          {"nearest_interp_v2_4.tmp_0", {1, 64, 400, 400}},
-          {"nearest_interp_v2_5.tmp_0", {1, 64, 400, 400}},
-          {"elementwise_add_7", {1, 56, 400, 400}},
-          {"nearest_interp_v2_0.tmp_0", {1, 256, 400, 400}}};
-      std::map<std::string, std::vector<int>> opt_input_shape = {
-          {"x", {1, 3, 640, 640}},
-          {"conv2d_92.tmp_0", {1, 120, 160, 160}},
-          {"conv2d_91.tmp_0", {1, 24, 80, 80}},
-          {"conv2d_59.tmp_0", {1, 96, 160, 160}},
-          {"nearest_interp_v2_1.tmp_0", {1, 256, 80, 80}},
-          {"nearest_interp_v2_2.tmp_0", {1, 256, 160, 160}},
-          {"conv2d_124.tmp_0", {1, 256, 160, 160}},
-          {"nearest_interp_v2_3.tmp_0", {1, 64, 160, 160}},
-          {"nearest_interp_v2_4.tmp_0", {1, 64, 160, 160}},
-          {"nearest_interp_v2_5.tmp_0", {1, 64, 160, 160}},
-          {"elementwise_add_7", {1, 56, 40, 40}},
-          {"nearest_interp_v2_0.tmp_0", {1, 256, 40, 40}}};
-
-      config.SetTRTDynamicShapeInfo(min_input_shape, max_input_shape,
-                                    opt_input_shape);
+      config.EnableTensorRtEngine(1 << 30, 1, 20, precision, false, false);
+      config.CollectShapeRangeInfo("./trt_shape.txt");
+      config.EnableTunedTensorRtDynamicShape("./trt_shape.txt", true);
+      
     }
   } else {
     config.DisableGpu();
diff --git a/deploy/cpp_infer/src/ocr_rec.cpp b/deploy/cpp_infer/src/ocr_rec.cpp
index 0f90ddfab4..36bfaf19d7 100644
--- a/deploy/cpp_infer/src/ocr_rec.cpp
+++ b/deploy/cpp_infer/src/ocr_rec.cpp
@@ -148,19 +148,9 @@ void CRNNRecognizer::LoadModel(const std::string &model_dir) {
         precision = paddle_infer::Config::Precision::kInt8;
       }
       config.EnableTensorRtEngine(1 << 20, 10, 15, precision, false, false);
-      int imgH = this->rec_image_shape_[1];
-      int imgW = this->rec_image_shape_[2];
-      std::map<std::string, std::vector<int>> min_input_shape = {
-          {"x", {1, 3, imgH, 10}}, {"lstm_0.tmp_0", {10, 1, 96}}};
-      std::map<std::string, std::vector<int>> max_input_shape = {
-          {"x", {this->rec_batch_num_, 3, imgH, 2500}},
-          {"lstm_0.tmp_0", {1000, 1, 96}}};
-      std::map<std::string, std::vector<int>> opt_input_shape = {
-          {"x", {this->rec_batch_num_, 3, imgH, imgW}},
-          {"lstm_0.tmp_0", {25, 1, 96}}};
-
-      config.SetTRTDynamicShapeInfo(min_input_shape, max_input_shape,
-                                    opt_input_shape);
+      config.CollectShapeRangeInfo("./trt_shape.txt");
+      config.EnableTunedTensorRtDynamicShape("./trt_shape.txt", true);
+      
     }
   } else {
     config.DisableGpu();