diff --git a/apps/application/serializers/application_serializers.py b/apps/application/serializers/application_serializers.py
index a6f2ea29a39..44ecce1f9c7 100644
--- a/apps/application/serializers/application_serializers.py
+++ b/apps/application/serializers/application_serializers.py
@@ -332,9 +332,9 @@ def get_query_set(self):
                 {'temp_application.name': models.CharField(), 'temp_application.desc': models.CharField(),
                  'temp_application.create_time': models.DateTimeField()}))
             if "desc" in self.data and self.data.get('desc') is not None:
-                query_set = query_set.filter(**{'temp_application.desc__contains': self.data.get("desc")})
+                query_set = query_set.filter(**{'temp_application.desc__icontains': self.data.get("desc")})
             if "name" in self.data and self.data.get('name') is not None:
-                query_set = query_set.filter(**{'temp_application.name__contains': self.data.get("name")})
+                query_set = query_set.filter(**{'temp_application.name__icontains': self.data.get("name")})
             query_set = query_set.order_by("-temp_application.create_time")
             query_set_dict['default_sql'] = query_set
 
diff --git a/apps/application/serializers/chat_serializers.py b/apps/application/serializers/chat_serializers.py
index d60f543bba7..dc69c147508 100644
--- a/apps/application/serializers/chat_serializers.py
+++ b/apps/application/serializers/chat_serializers.py
@@ -85,7 +85,7 @@ def get_query_set(self):
             base_query_dict = {'application_chat.application_id': self.data.get("application_id"),
                                'application_chat.create_time__gte': end_time}
             if 'abstract' in self.data and self.data.get('abstract') is not None:
-                base_query_dict['application_chat.abstract__contains'] = self.data.get('abstract')
+                base_query_dict['application_chat.abstract__icontains'] = self.data.get('abstract')
             base_condition = Q(**base_query_dict)
             min_star_query = None
             min_trample_query = None
diff --git a/apps/dataset/serializers/dataset_serializers.py b/apps/dataset/serializers/dataset_serializers.py
index 56215a93c31..6f03eca2a83 100644
--- a/apps/dataset/serializers/dataset_serializers.py
+++ b/apps/dataset/serializers/dataset_serializers.py
@@ -133,9 +133,9 @@ def get_query_set(self):
                 {'temp.name': models.CharField(), 'temp.desc': models.CharField(),
                  "document_temp.char_length": models.IntegerField(), 'temp.create_time': models.DateTimeField()}))
             if "desc" in self.data and self.data.get('desc') is not None:
-                query_set = query_set.filter(**{'temp.desc__contains': self.data.get("desc")})
+                query_set = query_set.filter(**{'temp.desc__icontains': self.data.get("desc")})
             if "name" in self.data and self.data.get('name') is not None:
-                query_set = query_set.filter(**{'temp.name__contains': self.data.get("name")})
+                query_set = query_set.filter(**{'temp.name__icontains': self.data.get("name")})
             query_set = query_set.order_by("-temp.create_time")
             query_set_dict['default_sql'] = query_set
 
diff --git a/apps/dataset/serializers/document_serializers.py b/apps/dataset/serializers/document_serializers.py
index 31a31faee8d..c3b41e802b5 100644
--- a/apps/dataset/serializers/document_serializers.py
+++ b/apps/dataset/serializers/document_serializers.py
@@ -121,7 +121,7 @@ def get_query_set(self):
             query_set = QuerySet(model=Document)
             query_set = query_set.filter(**{'dataset_id': self.data.get("dataset_id")})
             if 'name' in self.data and self.data.get('name') is not None:
-                query_set = query_set.filter(**{'name__contains': self.data.get('name')})
+                query_set = query_set.filter(**{'name__icontains': self.data.get('name')})
             query_set = query_set.order_by('-create_time')
             return query_set
 
diff --git a/apps/dataset/serializers/paragraph_serializers.py b/apps/dataset/serializers/paragraph_serializers.py
index c3e1fea1c63..0fc20744e75 100644
--- a/apps/dataset/serializers/paragraph_serializers.py
+++ b/apps/dataset/serializers/paragraph_serializers.py
@@ -494,9 +494,9 @@ def get_query_set(self):
                 **{'dataset_id': self.data.get('dataset_id'), 'document_id': self.data.get("document_id")})
             if 'title' in self.data:
                 query_set = query_set.filter(
-                    **{'title__contains': self.data.get('title')})
+                    **{'title__icontains': self.data.get('title')})
             if 'content' in self.data:
-                query_set = query_set.filter(**{'content__contains': self.data.get('content')})
+                query_set = query_set.filter(**{'content__icontains': self.data.get('content')})
             return query_set
 
         def list(self):
diff --git a/apps/dataset/serializers/problem_serializers.py b/apps/dataset/serializers/problem_serializers.py
index cc145620632..5d00d5be4cc 100644
--- a/apps/dataset/serializers/problem_serializers.py
+++ b/apps/dataset/serializers/problem_serializers.py
@@ -83,7 +83,7 @@ def get_query_set(self):
             query_set = query_set.filter(
                 **{'dataset_id': self.data.get('dataset_id')})
             if 'content' in self.data:
-                query_set = query_set.filter(**{'content__contains': self.data.get('content')})
+                query_set = query_set.filter(**{'content__icontains': self.data.get('content')})
             query_set = query_set.order_by("-create_time")
             return query_set