diff --git a/src/main/java/org/jcnc/jnotepad/controller/event/handler/menuBar/SaveFile.java b/src/main/java/org/jcnc/jnotepad/controller/event/handler/menuBar/SaveFile.java
index fb1c761..f33022f 100644
--- a/src/main/java/org/jcnc/jnotepad/controller/event/handler/menuBar/SaveFile.java
+++ b/src/main/java/org/jcnc/jnotepad/controller/event/handler/menuBar/SaveFile.java
@@ -75,13 +75,11 @@ public class SaveFile implements EventHandler<ActionEvent> {
             File file = fileChooser.showSaveDialog(UiUtil.getAppWindow());
             if (file != null) {
                 LogUtil.getLogger(currentClass).info("正在保存文件:{}", file.getName());
-                selectedTab.save();
+                selectedTab.save(file);
                 // 将保存后的文件设置为已关联
                 selectedTab.setRelevance(true);
                 // 更新Tab页标签上的文件名
                 selectedTab.setText(file.getName());
-                // 将文件对象保存到Tab页的UserData中
-                selectedTab.setUserData(file);
             }
         }
     }
diff --git a/src/main/java/org/jcnc/jnotepad/ui/module/LineNumberTextArea.java b/src/main/java/org/jcnc/jnotepad/ui/module/LineNumberTextArea.java
index 428214d..81ee991 100644
--- a/src/main/java/org/jcnc/jnotepad/ui/module/LineNumberTextArea.java
+++ b/src/main/java/org/jcnc/jnotepad/ui/module/LineNumberTextArea.java
@@ -7,6 +7,7 @@ import org.jcnc.jnotepad.tool.LogUtil;
 import org.jcnc.jnotepad.tool.SingletonUtil;
 import org.jcnc.jnotepad.tool.UiUtil;
 import org.jcnc.jnotepad.ui.root.center.tab.JNotepadTab;
+import org.slf4j.Logger;
 
 import java.io.BufferedWriter;
 import java.io.File;
@@ -17,6 +18,8 @@ import java.io.IOException;
  * @author 许轲
  */
 public class LineNumberTextArea extends BorderPane {
+
+    private static final Logger logger=LogUtil.getLogger(LineNumberTextArea.class);
     static final int[] SIZE_TABLE = {9, 99, 999, 9999, 99999, 999999, 9999999,
             99999999, 999999999, Integer.MAX_VALUE};
     private static final int MIN_LINE_NUMBER_WIDTH = 30;
@@ -72,17 +75,21 @@ public class LineNumberTextArea extends BorderPane {
      */
     public void save() {
         JNotepadTab tab = UiUtil.getJnotepadtab();
-        if (tab != null) {
-            File file = (File) tab.getUserData();
-            String newValue = this.mainTextArea.getText();
-            if (file != null) {
-                try (BufferedWriter writer = new BufferedWriter(new FileWriter(file, tab.getCharset()))) {
-                    writer.write(newValue);
-                    LogUtil.getLogger(this.getClass()).info("正在自动保存---");
-                } catch (IOException ignored) {
-                    LogUtil.getLogger(this.getClass()).info("已忽视IO异常!");
-                }
-            }
+        if (tab == null) {
+            return;
+        }
+        File file = (File) tab.getUserData();
+        String newValue = this.mainTextArea.getText();
+        if (file == null) {
+            // 文件对象不存在
+            logger.warn("Tab上没有关联文件信息");
+            return;
+        }
+        try (BufferedWriter writer = new BufferedWriter(new FileWriter(file, tab.getCharset()))) {
+            writer.write(newValue);
+            LogUtil.getLogger(this.getClass()).info("正在自动保存---");
+        } catch (IOException ignored) {
+            LogUtil.getLogger(this.getClass()).info("已忽视IO异常!");
         }
     }
 
diff --git a/src/main/java/org/jcnc/jnotepad/ui/root/center/tab/JNotepadTab.java b/src/main/java/org/jcnc/jnotepad/ui/root/center/tab/JNotepadTab.java
index d5edb7a..700be3a 100644
--- a/src/main/java/org/jcnc/jnotepad/ui/root/center/tab/JNotepadTab.java
+++ b/src/main/java/org/jcnc/jnotepad/ui/root/center/tab/JNotepadTab.java
@@ -4,6 +4,7 @@ import javafx.scene.control.Tab;
 import org.jcnc.jnotepad.controller.config.AppConfigController;
 import org.jcnc.jnotepad.ui.module.LineNumberTextArea;
 
+import java.io.File;
 import java.nio.charset.Charset;
 
 /**
@@ -70,7 +71,22 @@ public class JNotepadTab extends Tab {
         this.charset = charset;
     }
 
+    /**
+     * 保存文件内容
+     */
     public void save() {
         this.lineNumberTextArea.save();
     }
+
+    /**
+     * 保存为指定文件
+     * @param file 新文件
+     */
+    public void save(File file) {
+        if (file == null) {
+            return;
+        }
+        this.setUserData(file);
+        save();
+    }
 }