diff --git a/test_tipc/prepare.sh b/test_tipc/prepare.sh
index 49b0fc7c785fb5367b8bbf5bb4692746ebe61e68..34239f1964c6fee1fcbe605030c1d942ba6d9540 100644
--- a/test_tipc/prepare.sh
+++ b/test_tipc/prepare.sh
@@ -53,11 +53,13 @@ if [ ${MODE} = "lite_train_lite_infer" ];then
         cd ./train_data && tar xf total_text_lite.tar && ln -s total_text && cd ../
     fi
     if [ ${model_name} == "det_mv3_db_v2.0" ]; then
-        wget -nc -P https://paddleocr.bj.bcebos.com/dygraph_v2.0/en/det_mv3_db_v2.0_train.tar  --no-check-certificate
-        cd ./inference/ && tar det_mv3_db_v2.0_train.tar && cd ../
+        wget -nc -P ./inference/ https://paddleocr.bj.bcebos.com/dygraph_v2.0/en/det_mv3_db_v2.0_train.tar  --no-check-certificate
+        cd ./inference/ && tar xf det_mv3_db_v2.0_train.tar && cd ../
     fi
     if [ ${model_name} == "det_r50_db_v2.0" ]; then
         wget -nc -P ./pretrain_models/ https://paddle-imagenet-models-name.bj.bcebos.com/dygraph/ResNet50_vd_ssld_pretrained.pdparams --no-check-certificate
+        wget -nc -P ./inference/ https://paddleocr.bj.bcebos.com/dygraph_v2.0/en/det_r50_vd_db_v2.0_train.tar  --no-check-certificate
+        cd ./inference/ && tar xf det_r50_vd_db_v2.0_train.tar && cd ../
     fi
 
 elif [ ${MODE} = "whole_train_whole_infer" ];then