diff --git a/tools/infer/predict_system_mp.py b/tools/infer/predict_system_mp.py
index 42373ee8c96cdd0ba54d8c14b83dd61f88cab083..a4c3bf39edbeecbd37acfe3833c63066324cae8e 100755
--- a/tools/infer/predict_system_mp.py
+++ b/tools/infer/predict_system_mp.py
@@ -38,9 +38,11 @@ if __name__ == "__main__":
 
         with open("{}/results.{}".format(inference_dir, process_id),
                   "w") as fin:
-            p = subprocess.Popen(cmd, stdout=fin, stderr=fin)
+            # p = subprocess.Popen(cmd, stdout=fin, stderr=fin)
             # if you want to print results in the screen, you can use the following command
-            # p = subprocess.Popen(cmd, stdout=fin, stderr=sys.stdout)
+            p = subprocess.Popen(cmd, stdout=sys.stdout, stderr=sys.stdout)
             p_list.append(p)
     for p in p_list:
         p.wait()
+    print("all inference results are save in directory: {}".format(
+        inference_dir))
diff --git a/tools/infer/utility.py b/tools/infer/utility.py
index d84332ccf5166ffb70e849fdd251bc1ef5e7bc7b..a264be5fbd4a578a3c2d5b826555062551eb61cc 100755
--- a/tools/infer/utility.py
+++ b/tools/infer/utility.py
@@ -85,7 +85,6 @@ def parse_args():
     parser.add_argument("--enable_mkldnn", type=str2bool, default=False)
     parser.add_argument("--use_pdserving", type=str2bool, default=False)
 
-    parser.add_argument("--use_multiprocess", type=str2bool, default=False)
     parser.add_argument("--total_process_num", type=int, default=1)
     parser.add_argument("--process_id", type=int, default=0)