diff --git a/examples/aishell/asr0/local/train.sh b/examples/aishell/asr0/local/train.sh
index 2b71b7f763f..c0da332577e 100755
--- a/examples/aishell/asr0/local/train.sh
+++ b/examples/aishell/asr0/local/train.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if [ $# -lt 2 ] && [ $# -gt 3 ];then
+if [ $# -lt 2 ] || [ $# -gt 3 ];then
     echo "usage: CUDA_VISIBLE_DEVICES=0 ${0} config_path ckpt_name ips(optional)"
     exit -1
 fi
diff --git a/examples/aishell/asr1/local/train.sh b/examples/aishell/asr1/local/train.sh
index bfa8dd97d44..3d4f052a3b0 100755
--- a/examples/aishell/asr1/local/train.sh
+++ b/examples/aishell/asr1/local/train.sh
@@ -17,7 +17,7 @@ if [ ${seed} != 0  ]; then
     echo "using seed $seed & FLAGS_cudnn_deterministic=True ..."
 fi
 
-if [ $# -lt 2 ] && [ $# -gt 3 ];then
+if [ $# -lt 2 ] || [ $# -gt 3 ];then
     echo "usage: CUDA_VISIBLE_DEVICES=0 ${0} config_path ckpt_name ips(optional)"
     exit -1
 fi
diff --git a/examples/aishell/asr3/local/train.sh b/examples/aishell/asr3/local/train.sh
index e51e3d34cac..33fef0fd63a 100755
--- a/examples/aishell/asr3/local/train.sh
+++ b/examples/aishell/asr3/local/train.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if [ $# -lt 2 ] && [ $# -gt 3 ];then
+if [ $# -lt 2 ] || [ $# -gt 3 ];then
     echo "usage: CUDA_VISIBLE_DEVICES=0 ${0} config_path ckpt_name ips(optional)"
     exit -1
 fi