diff --git a/src/main/java/com/casic/swing/utils/LogToFile.java b/src/main/java/com/casic/swing/utils/LogToFile.java
index 67ad8d9..d27cfd0 100644
--- a/src/main/java/com/casic/swing/utils/LogToFile.java
+++ b/src/main/java/com/casic/swing/utils/LogToFile.java
@@ -2,15 +2,21 @@
 
 import java.io.*;
 import java.nio.charset.StandardCharsets;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
 import java.util.Calendar;
+import java.util.Date;
+import java.util.Locale;
 
 /**
  * @author Administrator
  */
 public class LogToFile {
+    private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd", Locale.CHINA);
+
     public static void save(String log) {
         File rootDir = Constant.intRootDir();
-        File logFile = new File(rootDir + File.separator + "update.log");
+        File logFile = new File(rootDir + File.separator + DATE_FORMAT.format(new Date()) + "_ntp.log");
         //写入配置文件
         try {
             FileOutputStream fos;
@@ -35,7 +41,11 @@
     public static String load() {
         try {
             File rootDir = Constant.intRootDir();
-            File logFile = new File(rootDir + File.separator + "update.log");
+            File logFile = new File(rootDir + File.separator + DATE_FORMAT.format(new Date()) + "_ntp.log");
+            if (!logFile.exists()) {
+                logFile.createNewFile();
+                return "";
+            }
             FileInputStream inputStream = new FileInputStream(logFile);
             InputStreamReader streamReader = new InputStreamReader(inputStream);
             BufferedReader bufferedReader = new BufferedReader(streamReader);
@@ -48,7 +58,9 @@
             if ("".equals(data.toString())) {
                 return "";
             }
-            String result = data.toString().split("\r\n")[0];
+            //取最后一条记录
+            String[] content = data.toString().split("\r\n");
+            String result = content[content.length - 1];
             /**
              * 5 Jan 11:20:24 ntpdate[807910]: adjust time server 114.118.7.161 offset -0.004064 sec
              * 5 Jan 11:24:06 ntpdate[824403]: no server suitable for synchronization found