diff --git a/apps/application/serializers/chat_serializers.py b/apps/application/serializers/chat_serializers.py
index fc4195f81..2b345ecff 100644
--- a/apps/application/serializers/chat_serializers.py
+++ b/apps/application/serializers/chat_serializers.py
@@ -20,6 +20,7 @@ from django.core.cache import caches
 from django.db import transaction, models
 from django.db.models import QuerySet, Q
 from django.http import StreamingHttpResponse
+from openpyxl.cell.cell import ILLEGAL_CHARACTERS_RE
 from rest_framework import serializers
 
 from application.flow.workflow_manage import Flow
@@ -205,6 +206,8 @@ class ChatSerializers(serializers.Serializer):
                     for row_idx, row in enumerate(batch_data, start=i + 2):
                         for col_idx, value in enumerate(self.to_row(row), 1):
                             cell = worksheet.cell(row=row_idx, column=col_idx)
+                            if isinstance(value, str):
+                                value = re.sub(ILLEGAL_CHARACTERS_RE, '', value)
                             cell.value = value
 
                 output = BytesIO()
diff --git a/apps/dataset/serializers/document_serializers.py b/apps/dataset/serializers/document_serializers.py
index bc3fbef23..03109fa4d 100644
--- a/apps/dataset/serializers/document_serializers.py
+++ b/apps/dataset/serializers/document_serializers.py
@@ -21,6 +21,7 @@ from django.db import transaction
 from django.db.models import QuerySet
 from django.http import HttpResponse
 from drf_yasg import openapi
+from openpyxl.cell.cell import ILLEGAL_CHARACTERS_RE
 from rest_framework import serializers
 from xlwt import Utils
 
@@ -510,6 +511,8 @@ class DocumentSerializers(ApiMixin, serializers.Serializer):
                 for row_idx, row in enumerate(data):
                     for col_idx, col in enumerate(row):
                         cell = worksheet.cell(row=row_idx + 1, column=col_idx + 1)
+                        if isinstance(col, str):
+                            col = re.sub(ILLEGAL_CHARACTERS_RE, '', col)
                         cell.value = col
                     # 创建HttpResponse对象返回Excel文件
             return workbook