diff --git a/.gitignore b/.gitignore
index b3fe3d2..a64e015 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /faiss_vector_db/demo_faiss_index/
 /faiss_vector_db/faiss_index/
 /faiss_vector_db/faiss_index092901/
+/faiss_vector_db/faiss_index101001/
diff --git a/classifier/embedding_food_classifier_app.py b/classifier/embedding_food_classifier_app.py
index af7e8eb..5d34789 100644
--- a/classifier/embedding_food_classifier_app.py
+++ b/classifier/embedding_food_classifier_app.py
@@ -739,7 +739,9 @@ class EmbeddingFoodClassifierApp:
     def save_updated_index(self):
         """保存更新后的索引和元数据"""
         try:
-            index_dir = "../faiss_vector_db/faiss_index"
+            # 与加载阶段保持一致：使用当前文件目录作为基准，组合索引目录的绝对路径
+            BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+            index_dir = os.path.join(BASE_DIR, "../faiss_vector_db/faiss_index")
             
             # 保存FAISS索引
             index_path = os.path.join(index_dir, 'faiss_index.bin')
@@ -791,11 +793,8 @@ class EmbeddingFoodClassifierApp:
             self.new_class_name.set("")
             self.class_dropdown.set("")
             
-            # 更新类别下拉框（如果有新类别）
-            if target_class not in self.class_dropdown.cget("values"):
-                current_values = list(self.class_dropdown.cget("values"))
-                current_values.append(target_class)
-                self.class_dropdown.configure(values=current_values)
+            # 更新类别下拉框：统一以当前 self.class_names 列表刷新
+            self.class_dropdown.configure(values=self.class_names)
             
             self.update_add_button_state()
         else: