diff --git a/deploy/cpp_infer/src/main.cpp b/deploy/cpp_infer/src/main.cpp
index f2f6d807f47bb7acafec89c823145ef6cdf8b368..f25e674b489ea92118fe45c63939fca203ce3823 100644
--- a/deploy/cpp_infer/src/main.cpp
+++ b/deploy/cpp_infer/src/main.cpp
@@ -51,7 +51,6 @@ int main(int argc, char **argv) {
 
   std::string img_path(argv[2]);
   std::vector<std::string> all_img_names;
-  // cv::Mat srcimg = cv::imread(img_path, cv::IMREAD_COLOR);
   Utility::GetAllFiles((char *)img_path.c_str(), all_img_names);
 
   DBDetector det(config.det_model_dir, config.use_gpu, config.gpu_id,
diff --git a/deploy/cpp_infer/tools/build.sh b/deploy/cpp_infer/tools/build.sh
index 0c99f0e98fcad444412e04fdacfd8a63c372f3c5..e7689196fd0c96d2198bee0ddbcec1798563453d 100755
--- a/deploy/cpp_infer/tools/build.sh
+++ b/deploy/cpp_infer/tools/build.sh
@@ -1,9 +1,8 @@
 OPENCV_DIR=/paddle/Paddle/opencv-3.4.7/opencv3
-LIB_DIR=/paddle/OCR/debug/paddle_inference
-#LIB_DIR=/paddle/Paddle/inference/2.0.2/paddle_inference
+LIB_DIR=your inference dir
 CUDA_LIB_DIR=/usr/local/cuda/lib64
 CUDNN_LIB_DIR=/usr/lib/x86_64-linux-gnu
-TENSORRT_DIR=/paddle/Paddle/package/TensorRT/TensorRT-6.0.1.5/
+TENSORRT_DIR=your trt dir
 
 BUILD_DIR=build
 rm -rf ${BUILD_DIR}
@@ -14,7 +13,7 @@ cmake .. \
     -DWITH_MKL=ON \
     -DWITH_GPU=OFF \
     -DWITH_STATIC_LIB=OFF \
-    -DWITH_TENSORRT=ON \
+    -DWITH_TENSORRT=OFF \
     -DOPENCV_DIR=${OPENCV_DIR} \
     -DCUDNN_LIB=${CUDNN_LIB_DIR} \
     -DCUDA_LIB=${CUDA_LIB_DIR} \
diff --git a/deploy/cpp_infer/tools/config.txt b/deploy/cpp_infer/tools/config.txt
index 9715fab30941867cca35496ae22612b956639bf6..d4d66d65225bc9d1d4d62f45550db71fb5d8414e 100644
--- a/deploy/cpp_infer/tools/config.txt
+++ b/deploy/cpp_infer/tools/config.txt
@@ -1,5 +1,5 @@
 # model load config
-use_gpu 1
+use_gpu 0
 gpu_id  0
 gpu_mem  4000
 cpu_math_library_num_threads  10
diff --git a/deploy/cpp_infer/tools/run.sh b/deploy/cpp_infer/tools/run.sh
index 73118b71a7107e0f17746106bbf08a73c702004a..fa61da75e3a71262f539ee348c69fb82ed2574fb 100755
--- a/deploy/cpp_infer/tools/run.sh
+++ b/deploy/cpp_infer/tools/run.sh
@@ -1,2 +1,2 @@
 
-./build/ocr_system ./tools/config.txt ../../doc/imgs/
+./build/ocr_system ./tools/config.txt ../../doc/imgs/12.jpg