diff --git a/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/Demo.java b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/Demo.java
deleted file mode 100644
index 3c4b0cf556..0000000000
--- a/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/Demo.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package org.apache.dolphinscheduler.api;
-
-import java.io.FileWriter;
-import java.io.Writer;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-
-public class Demo {
-
-    public static void main(String[] args) throws Exception{
-        Writer writer = new FileWriter("D:\\demo.txt");
-
-        for (int i = 0 ; i < 3000; i++){
-            writer.append("echo 日志打印测试" + (i+1) + "\r\n");
-        }
-        writer.close();
-    }
-}