diff --git a/dsRag/T4_VectorSave.py b/dsRag/T4_VectorSave.py
index 4d49baf2..712df513 100644
--- a/dsRag/T4_VectorSave.py
+++ b/dsRag/T4_VectorSave.py
@@ -4,6 +4,7 @@ from elasticsearch import Elasticsearch
 
 from Config.Config import ES_CONFIG
 from T2_Txt2Vec import text_to_embedding
+from Util.EsMappingUtil import create_vector_index  # 导入工具函数
 
 # 初始化ES连接
 es = Elasticsearch(
@@ -13,34 +14,25 @@ es = Elasticsearch(
     ssl_show_warn=ES_CONFIG["ssl_show_warn"]
 )
 
-def create_vector_index(index_name="knowledge_base"):
-    """创建带有向量字段的索引(适配200维腾讯词向量)"""
-    mapping = {
-        "mappings": {
-            "properties": {
-                "text": {"type": "text", "analyzer": "ik_max_word"},
-                "vector": {
-                    "type": "dense_vector",
-                    "dims": 200,  # 修改为腾讯词向量实际维度
-                    "index": True,
-                    "similarity": "cosine"
-                },
-                "timestamp": {"type": "date"}
+def save_to_es(text, index_name="knowledge_base"):
+    """将文本向量化后保存到ES"""
+    # 检查是否已存在相同文本
+    query = {
+        "query": {
+            "term": {
+                "text.keyword": {
+                    "value": text
+                }
             }
         }
     }
     
-    try:
-        if es.indices.exists(index=index_name):
-            es.indices.delete(index=index_name)
-        es.indices.create(index=index_name, body=mapping)
-        print(f"索引 {index_name} 创建成功(200维)")
-    except Exception as e:
-        print(f"创建索引失败: {str(e)}")
-        raise
-
-def save_to_es(text, index_name="knowledge_base"):
-    """将文本向量化后保存到ES"""
+    exists = es.search(index=index_name, body=query)
+    if exists["hits"]["total"]["value"] > 0:
+        print(f"文档已存在，跳过保存: {text}")
+        return exists["hits"]["hits"][0]["_id"]  # 返回现有文档ID
+    
+    # 保存新文档
     vector = text_to_embedding(text)
     doc = {
         "text": text,
@@ -51,12 +43,12 @@ def save_to_es(text, index_name="knowledge_base"):
     try:
         res = es.index(index=index_name, document=doc)
         print(f"文档已保存，ID: {res['_id']}")
-        return res
+        return res["_id"]
     except Exception as e:
         print(f"保存到ES失败: {str(e)}")
         raise
 
 # 使用示例
 if __name__ == "__main__":
-    create_vector_index()  # 首次运行前执行
+    create_vector_index(dims=200)  # 使用工具函数创建索引
     save_to_es("如何更换支付宝绑定银行卡")
\ No newline at end of file
diff --git a/dsRag/Util/EsMappingUtil.py b/dsRag/Util/EsMappingUtil.py
new file mode 100644
index 00000000..7aa01d88
--- /dev/null
+++ b/dsRag/Util/EsMappingUtil.py
@@ -0,0 +1,49 @@
+from elasticsearch import Elasticsearch
+from Config.Config import ES_CONFIG
+
+es = Elasticsearch(
+    hosts=ES_CONFIG["hosts"],
+    basic_auth=ES_CONFIG["basic_auth"],
+    verify_certs=ES_CONFIG["verify_certs"],
+    ssl_show_warn=ES_CONFIG["ssl_show_warn"]
+)
+
+def get_vector_mapping(dims=200):
+    """获取向量索引的mapping结构"""
+    return {
+        "mappings": {
+            "properties": {
+                "text": {"type": "text", "analyzer": "ik_max_word"},
+                "vector": {
+                    "type": "dense_vector",
+                    "dims": dims,
+                    "index": True,
+                    "similarity": "cosine"
+                },
+                "timestamp": {"type": "date"}
+            }
+        }
+    }
+
+def create_vector_index(index_name="knowledge_base", dims=200):
+    """创建带有向量字段的索引"""
+    mapping = get_vector_mapping(dims)
+    
+    try:
+        if es.indices.exists(index=index_name):
+            current_mapping = es.indices.get_mapping(index=index_name)
+            current_dims = current_mapping[index_name]["mappings"]["properties"]["vector"].get("dims", 0)
+            
+            if current_dims == dims:
+                print(f"索引 {index_name} 已存在且维度正确({dims}维)，无需操作")
+                return True
+            else:
+                print(f"警告：索引 {index_name} 已存在但维度不匹配(当前:{current_dims}维，需要:{dims}维)")
+                return False
+                
+        es.indices.create(index=index_name, body=mapping)
+        print(f"索引 {index_name} 创建成功({dims}维)")
+        return True
+    except Exception as e:
+        print(f"操作索引失败: {str(e)}")
+        raise
\ No newline at end of file
diff --git a/dsRag/__pycache__/T2_Txt2Vec.cpython-310.pyc b/dsRag/__pycache__/T2_Txt2Vec.cpython-310.pyc
new file mode 100644
index 00000000..d6e0b8bd
Binary files /dev/null and b/dsRag/__pycache__/T2_Txt2Vec.cpython-310.pyc differ