diff --git a/entrypoint.sh b/entrypoint.sh
index 7590f5e..68add03 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,5 +1,17 @@
 #!/bin/sh -l
 
+if [ -z "${INPUT_DINGTOKEN}" ]
+then
+    echo "dingToken is required!"
+    exit 1
+fi
+
+if [ -z "${INPUT_MESSAGE}" ]
+then
+    echo "message is required!"
+    exit 1
+fi
+
 url="https://oapi.dingtalk.com/robot/send?access_token=${INPUT_DINGTOKEN}"
 
 curl "$url" \