diff --git a/application/utils/elasticsearch/elasticsearch.py b/application/utils/elasticsearch/elasticsearch.py
index 43fa4ebfcd7809ef1cab24be953041684f406d58..209103bf77380a7f2686d92745fcd7f50f9c2e92 100644
--- a/application/utils/elasticsearch/elasticsearch.py
+++ b/application/utils/elasticsearch/elasticsearch.py
@@ -7,7 +7,7 @@
 # @Email       : StudentCWZ@outlook.com
 # @Date        : 2023/10/28 12:19
 # @File        : elasticsearch.py
-# @Description :
+# @Description : A utility class to interact with Elasticsearch.
 """
 
 import datetime
@@ -15,16 +15,24 @@ import datetime
 from application.extensions.init_elasticsearch import es
 
 
+import datetime
+
+from application.extensions.init_elasticsearch import es
+
+
 class ElasticsearchUtil:
     @classmethod
     def dsl(cls, _start: str, _end: str, size=5000) -> dict:
         """
-        Setting dsl
+        Constructs a DSL (Domain Specific Language) query for Elasticsearch.
+
+        Args:
+            _start (str): Start time.
+            _end (str): End time.
+            size (int, optional): Number of data results. Defaults to 5000.
 
-        :param _start: start time
-        :param _end: end time
-        :param size: data number
-        :return: dsl
+        Returns:
+            dict: The DSL query.
         """
         _dsl = {
             "size": size,
@@ -61,27 +69,43 @@ class ElasticsearchUtil:
     @classmethod
     def search(cls, _index: str, _dsl: dict, _scroll="5m") -> dict:
         """
-        Search data
+        Searches data in Elasticsearch.
 
-        :param _index: index name
-        :param _dsl: dsl
-        :param _scroll: scroll time
-        :return: data after search
+        Args:
+            _index (str): Index name.
+            _dsl (dict): DSL query.
+            _scroll (str, optional): Scroll time. Defaults to "5m".
+
+        Returns:
+            dict: Data after the search.
         """
         return es.search(index=_index, scroll=_scroll, body=_dsl)
 
     @classmethod
     def scroll_search(cls, _id,  _scroll="5m") -> dict:
         """
-        Search data
+        Searches data in Elasticsearch using scroll.
+
+        Args:
+            _id (str): Scroll ID.
+            _scroll (str, optional): Scroll time. Defaults to "5m".
 
-        :param _id: scroll id
-        :param _scroll: scroll time
-        :return: data after search by scroll
+        Returns:
+            dict: Data after the search by scroll.
         """
         return es.scroll(scroll_id=_id, scroll=_scroll, request_timeout=30)
 
     @classmethod
     def insert_data(cls, index: str, doc_type: str, data: dict) -> None:
-        # 插入数据
+        """
+        Inserts data into Elasticsearch.
+
+        Args:
+            index (str): Index name.
+            doc_type (str): Document type.
+            data (dict): Data to be inserted.
+
+        Returns:
+            None
+        """
         es.index(index=index, doc_type=doc_type, body=data)