diff --git a/src/main/java/org/example/ImageDotMarker.java b/src/main/java/org/example/ImageDotMarker.java
index 3a9d63a..bd9a159 100644
--- a/src/main/java/org/example/ImageDotMarker.java
+++ b/src/main/java/org/example/ImageDotMarker.java
@@ -443,7 +443,16 @@ public class ImageDotMarker extends JFrame {
     private void addNewPoint(Point imgPoint) {
         // 提示用户输入点名称
         String name = JOptionPane.showInputDialog(this, "请输入标记点名称:", "添加标记点", JOptionPane.PLAIN_MESSAGE);
-        if (name == null || name.isEmpty()) return; // 用户取消
+        if (name == null) return; // 用户取消
+        
+        // 去除空格
+        name = name.trim();
+        
+        // 检查去除空格后是否为空
+        if (name.isEmpty()) {
+            JOptionPane.showMessageDialog(this, "标记点名称不能为空！", "输入错误", JOptionPane.ERROR_MESSAGE);
+            return;
+        }
 
         MarkPoint point = new MarkPoint(imgPoint.x, imgPoint.y, name);
         points.add(point);
@@ -466,10 +475,21 @@ public class ImageDotMarker extends JFrame {
 
     private void editPointName(MarkPoint point) {
         String newName = JOptionPane.showInputDialog(this, "修改标记点名称:", point.name);
-        if (newName != null && !newName.equals(point.name)) {
-            point.name = newName;
-            updateImageDisplay();
-            updatePointList();
+        if (newName != null) {
+            // 去除空格
+            newName = newName.trim();
+            
+            // 检查去除空格后是否为空
+            if (newName.isEmpty()) {
+                JOptionPane.showMessageDialog(this, "标记点名称不能为空！", "输入错误", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+            
+            if (!newName.equals(point.name)) {
+                point.name = newName;
+                updateImageDisplay();
+                updatePointList();
+            }
         }
     }