diff --git a/pull-k8s-image.sh b/pull-k8s-image.sh
index ed85b75..fe4c482 100644
--- a/pull-k8s-image.sh
+++ b/pull-k8s-image.sh
@@ -5,5 +5,16 @@ mirror_img=$(echo ${k8s_img}|
         sed 's/k8s\.gcr\.io/anjia0532\/google-containers/g;s/gcr\.io/anjia0532/g;s/\//\./g;s/ /\n/g;s/anjia0532\./anjia0532\//g' |
         uniq)
 
-sudo docker pull ${mirror_img}
-sudo docker tag ${mirror_img} ${k8s_img}
+if [ -x "$(command -v docker)" ]; then
+  sudo docker pull ${mirror_img}
+  sudo docker tag ${mirror_img} ${k8s_img}
+  exit 0
+fi
+
+if [ -x "$(command -v ctr)" ]; then
+  sudo ctr image pull docker.io/${mirror_img}
+  sudo ctr image tag docker.io/${mirror_img} ${k8s_img}
+  exit 0
+fi
+
+echo "command not found:docker or ctr"