diff --git a/apps/application/serializers/chat_serializers.py b/apps/application/serializers/chat_serializers.py
index bcbb04e29..3af6b0624 100644
--- a/apps/application/serializers/chat_serializers.py
+++ b/apps/application/serializers/chat_serializers.py
@@ -422,11 +422,11 @@ class ChatRecordSerializer(serializers.Serializer):
             return True
 
     class ImproveSerializer(serializers.Serializer):
-        title = serializers.CharField(required=False, allow_null=True, allow_blank=True,
+        title = serializers.CharField(required=False, max_length=256, allow_null=True, allow_blank=True,
                                       error_messages=ErrMessage.char("段落标题"))
         content = serializers.CharField(required=True, error_messages=ErrMessage.char("段落内容"))
 
-        problem_text = serializers.CharField(required=False, allow_null=True, allow_blank=True,
+        problem_text = serializers.CharField(required=False, max_length=256, allow_null=True, allow_blank=True,
                                              error_messages=ErrMessage.char("问题"))
 
     class ParagraphModel(serializers.ModelSerializer):
diff --git a/ui/src/views/log/component/EditContentDialog.vue b/ui/src/views/log/component/EditContentDialog.vue
index 85031ea39..2688b246d 100644
--- a/ui/src/views/log/component/EditContentDialog.vue
+++ b/ui/src/views/log/component/EditContentDialog.vue
@@ -9,7 +9,13 @@
       @submit.prevent
     >
       <el-form-item label="关联问题">
-        <el-input v-model="form.problem_text" placeholder="关联问题"> </el-input>
+        <el-input
+          v-model="form.problem_text"
+          placeholder="关联问题"
+          maxlength="256"
+          show-word-limit
+        >
+        </el-input>
       </el-form-item>
       <el-form-item label="内容" prop="content">
         <el-input
@@ -23,7 +29,12 @@
         </el-input>
       </el-form-item>
       <el-form-item label="标题">
-        <el-input v-model="form.title" placeholder="请给当前内容设置一个标题，以便管理查看">
+        <el-input
+          show-word-limit
+          v-model="form.title"
+          placeholder="请给当前内容设置一个标题，以便管理查看"
+          maxlength="256"
+        >
         </el-input>
       </el-form-item>
       <el-form-item label="选择知识库" prop="dataset_id">
diff --git a/ui/src/views/paragraph/component/ParagraphForm.vue b/ui/src/views/paragraph/component/ParagraphForm.vue
index f3b0d14cd..0760732b7 100644
--- a/ui/src/views/paragraph/component/ParagraphForm.vue
+++ b/ui/src/views/paragraph/component/ParagraphForm.vue
@@ -8,7 +8,14 @@
     @submit.prevent
   >
     <el-form-item label="分段标题">
-      <el-input v-if="isEdit" v-model="form.title" placeholder="请输入分段标题"> </el-input>
+      <el-input
+        v-if="isEdit"
+        v-model="form.title"
+        placeholder="请输入分段标题"
+        maxlength="256"
+        show-word-limit
+      >
+      </el-input>
       <span class="lighter" v-else>{{ form.title || '-' }}</span>
     </el-form-item>
     <el-form-item label="分段内容" prop="content">
@@ -24,7 +31,7 @@
         :footers="footers"
       >
         <template #defFooters>
-          <span style="margin-left: -6px;">/ 4096</span>
+          <span style="margin-left: -6px">/ 4096</span>
         </template>
       </MarkdownEditor>
       <MdPreview