diff --git a/main/src/controller/RenameController.java b/main/src/controller/RenameController.java
index 70541f79fb464b7ce0d0539e44a383db046ae9b0..b36d77a3649f328dd5ca80b041773dc9b6578c61 100644
--- a/main/src/controller/RenameController.java
+++ b/main/src/controller/RenameController.java
@@ -2,12 +2,17 @@ package controller;
 
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
+import javafx.scene.Group;
+import javafx.scene.Scene;
 import javafx.scene.control.Button;
 import javafx.scene.control.Label;
 import javafx.scene.control.TextField;
+import javafx.scene.layout.AnchorPane;
+import javafx.scene.layout.Pane;
 import javafx.stage.Stage;
 
 import static controller.MainController.*;
+import static operations.renameOperations.isAbleToRename;
 
 
 public class RenameController {
@@ -33,14 +38,28 @@ public class RenameController {
 
     @FXML
     void renameConfirm(ActionEvent event) {
-        currentFile.setFileName(renameField.getText());
-        icons.get(currentFile).setText(currentFile.getFileName());
-        if (currentFile.getParent() == rootFile) {
-            currentFile = rootFile;
+        if (isAbleToRename(currentFile, renameField.getText())) {
+            currentFile.setFileName(renameField.getText());
+            icons.get(currentFile).setText(currentFile.getFileName());
+            if (currentFile.getParent() == rootFile) {
+                currentFile = rootFile;
+            } else {
+                currentFile = currentFile.getParent();
+            }
+            Stage stage = (Stage) renameField.getScene().getWindow();
+            stage.close();
         } else {
-            currentFile = currentFile.getParent();
+            AnchorPane anchorPane = new AnchorPane();
+            Scene scene = new Scene(anchorPane, 200, 20);
+            Label label = new Label("文件不能重名！");
+            label.setLayoutX(65);
+            label.setLayoutY(5);
+            anchorPane.getChildren().add(label);
+            Stage stage = new Stage();
+            stage.setScene(scene);
+            stage.setTitle("错误");
+            stage.setResizable(false);
+            stage.show();
         }
-        Stage stage = (Stage) renameField.getScene().getWindow();
-        stage.close();
     }
 }
diff --git a/main/src/operations/renameOperations.java b/main/src/operations/renameOperations.java
index ffbfbbd796706be7e17ebf3188f072418d6ea102..db1b1821c0f674d1f052d7616aa12fcc7adc770f 100644
--- a/main/src/operations/renameOperations.java
+++ b/main/src/operations/renameOperations.java
@@ -1,5 +1,6 @@
 package operations;
 
+import Data.File;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Scene;
 import javafx.stage.Stage;
@@ -21,4 +22,16 @@ public class renameOperations {
         stage.setScene(scene);
         stage.show();
     }
+
+    public static boolean isAbleToRename(File file, String renameStr) {
+        for (File file1 : file.getParent().getChildrenFile()) {
+            if (file1 == file) {
+                continue;
+            }
+            if (file1.getFileName().equals(renameStr)) {
+                return false;
+            }
+        }
+        return true;
+    }
 }