diff --git a/benchmark/run_benchmark_det.sh b/benchmark/run_benchmark_det.sh
index ebafa20e9adfbd0a2e41a96085dbf4bf04ddda61..3ab3ad2b66bd052fa49a850562cff624c5ce2c22 100644
--- a/benchmark/run_benchmark_det.sh
+++ b/benchmark/run_benchmark_det.sh
@@ -13,7 +13,7 @@ function _set_params(){
     base_batch_size=${batch_size}
     mission_name="OCR"
     direction_id="0"
-    ips_unit="instance/sec"
+    ips_unit="images/sec"
     skip_steps=2                 # 解析日志，有些模型前几个step耗时长，需要跳过                                    (必填)
     keyword="ips:"               # 解析日志，筛选出数据所在行的关键字                                             (必填)
     index="1"