diff --git a/test_tipc/configs/det_mv3_db_v2_0/train_infer_python.txt b/test_tipc/configs/det_mv3_db_v2_0/train_infer_python.txt
index 5cd0c2af36..fab8f50d54 100644
--- a/test_tipc/configs/det_mv3_db_v2_0/train_infer_python.txt
+++ b/test_tipc/configs/det_mv3_db_v2_0/train_infer_python.txt
@@ -50,7 +50,7 @@ null:null
 --benchmark:True
 null:null
 ===========================infer_benchmark_params==========================
-random_infer_input:[{float32,[3,960,960]}];[{float32,[3,960,960]}]
+random_infer_input:[{float32,[3,640,640]}];[{float32,[3,960,960]}]
 ===========================train_benchmark_params==========================
 batch_size:8|16
 fp_items:fp32|fp16