diff --git a/test_tipc/docs/test_inference_cpp.md b/test_tipc/docs/test_inference_cpp.md
index a87141a79a3fa21b054857b70df96d49c0caabea..01847af3b694ecc4dfd99d3c686cb31542448adc 100644
--- a/test_tipc/docs/test_inference_cpp.md
+++ b/test_tipc/docs/test_inference_cpp.md
@@ -17,7 +17,10 @@ C++预测功能测试的主程序为`test_inference_cpp.sh`，可以测试基于
 运行环境配置请参考[文档](./install.md)的内容配置TIPC的运行环境。
 ```
 # 请设置paddle_inference环境变量，如：
-export PADDLE_DIR=/path/paddle_inference
+export PADDLE_INFER_DIR=/path/to/paddle_inference
+# 若不设置paddle_inference环境变量，也可通过指定参数的方式使脚本自动下载paddle_inference.tgz，如：
+bash test_tipc/test_inference_cpp.sh test_tipc/configs/yolov3/yolov3_darknet53_270e_coco_model_linux_gpu_normal_normal_infer_cpp_linux_gpu_cpu.txt 'https://paddle-inference-lib.bj.bcebos.com/2.3.0/cxx_c/Linux/GPU/x86-64_gcc8.2_avx_mkl_cuda10.1_cudnn7.6.5_trt6.0.1.5/paddle_inference.tgz'
+
 # 若未使用docker镜像: paddlepaddle/paddle:latest-gpu-cuda10.1-cudnn7-gcc82-dev
 # 请设置TensorRT环境变量，如：
 export TENSORRT_ROOT=/usr/local/TensorRT6-cuda10.1-cudnn7
@@ -30,8 +33,10 @@ export TENSORRT_ROOT=/usr/local/TensorRT6-cuda10.1-cudnn7
 bash test_tipc/prepare.sh ./test_tipc/configs/yolov3/yolov3_darknet53_270e_coco_model_linux_gpu_normal_normal_infer_cpp_linux_gpu_cpu.txt "cpp_infer"
 # 用法1:
 bash test_tipc/test_inference_cpp.sh test_tipc/configs/yolov3/yolov3_darknet53_270e_coco_model_linux_gpu_normal_normal_infer_cpp_linux_gpu_cpu.txt
-# 用法2: 指定GPU卡预测，第三个传入参数为GPU卡号
-bash test_tipc/test_inference_cpp.sh test_tipc/configs/yolov3/yolov3_darknet53_270e_coco_model_linux_gpu_normal_normal_infer_cpp_linux_gpu_cpu.txt '1'
+# 用法2: 指定下载paddle_inference.tgz链接，第二个传入参数为下载链接
+bash test_tipc/test_inference_cpp.sh test_tipc/configs/yolov3/yolov3_darknet53_270e_coco_model_linux_gpu_normal_normal_infer_cpp_linux_gpu_cpu.txt 'https://paddle-inference-lib.bj.bcebos.com/2.3.0/cxx_c/Linux/GPU/x86-64_gcc8.2_avx_mkl_cuda10.1_cudnn7.6.5_trt6.0.1.5/paddle_inference.tgz'
+# 用法3: 同时指定下载paddle_inference.tgz链接和指定GPU卡预测，第三个传入参数为GPU卡号
+bash test_tipc/test_inference_cpp.sh test_tipc/configs/yolov3/yolov3_darknet53_270e_coco_model_linux_gpu_normal_normal_infer_cpp_linux_gpu_cpu.txt 'https://paddle-inference-lib.bj.bcebos.com/2.3.0/cxx_c/Linux/GPU/x86-64_gcc8.2_avx_mkl_cuda10.1_cudnn7.6.5_trt6.0.1.5/paddle_inference.tgz' '1'
 ```  
 
 运行预测指令后，在`test_tipc/output`文件夹下自动会保存运行日志，包括以下文件：
diff --git a/test_tipc/test_inference_cpp.sh b/test_tipc/test_inference_cpp.sh
index 12e44715b5d17ba9cdd463e11412cbb5b8b832de..4a335d0582e3f4c068707e339f17d145678fe417 100644
--- a/test_tipc/test_inference_cpp.sh
+++ b/test_tipc/test_inference_cpp.sh
@@ -129,11 +129,21 @@ else
 fi
 
 # build program
-# TODO: set PADDLE_DIR and TENSORRT_ROOT
-if [ -z $PADDLE_DIR ]; then
-    wget -nc https://paddle-inference-lib.bj.bcebos.com/2.2.2/cxx_c/Linux/GPU/x86-64_gcc8.2_avx_mkl_cuda11.1_cudnn8.1.1_trt7.2.3.4/paddle_inference.tgz --no-check-certificate
-    tar zxf paddle_inference.tgz
-    PADDLE_DIR=$(pwd)/paddle_inference
+# TODO: set PADDLE_INFER_DIR and TENSORRT_ROOT
+if [ -z $PADDLE_INFER_DIR ]; then
+    Paddle_Infer_Link=$2
+    if [ "" = "$Paddle_Infer_Link" ];then
+        wget -nc https://paddle-inference-lib.bj.bcebos.com/2.2.2/cxx_c/Linux/GPU/x86-64_gcc8.2_avx_mkl_cuda10.1_cudnn7.6.5_trt6.0.1.5/paddle_inference.tgz --no-check-certificate
+        tar zxf paddle_inference.tgz
+        PADDLE_INFER_DIR=$(pwd)/paddle_inference
+    else
+        wget -nc $Paddle_Infer_Link --no-check-certificate
+        tar zxf paddle_inference.tgz
+        PADDLE_INFER_DIR=$(pwd)/paddle_inference
+        if [ ! -d "paddle_inference" ]; then
+          PADDLE_INFER_DIR=$(pwd)/paddle_inference_install_dir
+        fi
+    fi
 fi
 if [ -z $TENSORRT_ROOT ]; then
     TENSORRT_ROOT=/usr/local/TensorRT6-cuda10.1-cudnn7
@@ -148,10 +158,10 @@ mkdir -p build
 cd ./build
 cmake .. \
     -DWITH_GPU=ON \
-    -DWITH_MKL=OFF \
+    -DWITH_MKL=ON \
     -DWITH_TENSORRT=OFF \
     -DPADDLE_LIB_NAME=libpaddle_inference \
-    -DPADDLE_DIR=${PADDLE_DIR} \
+    -DPADDLE_DIR=${PADDLE_INFER_DIR} \
     -DCUDA_LIB=${CUDA_LIB} \
     -DCUDNN_LIB=${CUDNN_LIB} \
     -DTENSORRT_LIB_DIR=${TENSORRT_LIB_DIR} \
@@ -160,13 +170,13 @@ cmake .. \
     -DWITH_KEYPOINT=ON \
     -DWITH_MOT=ON
 
-make -j4
+make -j8
 cd ../../../
 echo "################### build finished! ###################"
 
 
 # set cuda device
-GPUID=$2
+GPUID=$3
 if [ ${#GPUID} -le 0 ];then
     env=" "
 else
@@ -178,7 +188,6 @@ Count=0
 IFS="|"
 infer_quant_flag=(${cpp_infer_is_quant_list})
 for infer_mode in ${cpp_infer_mode_list[*]}; do
-
     # run export
     case ${infer_mode} in
         norm) run_export=${norm_export} ;;