diff --git a/ui/src/views/application/CreateAndSetting.vue b/ui/src/views/application/CreateAndSetting.vue
index df64ea602..a99d05771 100644
--- a/ui/src/views/application/CreateAndSetting.vue
+++ b/ui/src/views/application/CreateAndSetting.vue
@@ -40,7 +40,7 @@
                   type="textarea"
                   placeholder="描述该应用的应用场景及用途，如：MaxKB 小助手回答用户提出的 MaxKB 产品使用问题"
                   :rows="3"
-                  maxlength="500"
+                  maxlength="256"
                   show-word-limit
                 />
               </el-form-item>
@@ -109,6 +109,7 @@
                   v-model="applicationForm.model_setting.prompt"
                   :rows="6"
                   type="textarea"
+                  maxlength="2048"
                   :placeholder="defaultPrompt"
                 />
               </el-form-item>
diff --git a/ui/src/views/dataset/component/BaseForm.vue b/ui/src/views/dataset/component/BaseForm.vue
index 73bec9e17..a196c46b9 100644
--- a/ui/src/views/dataset/component/BaseForm.vue
+++ b/ui/src/views/dataset/component/BaseForm.vue
@@ -21,7 +21,7 @@
         v-model="form.desc"
         type="textarea"
         placeholder="描述知识库的内容，详尽的描述将帮助AI能深入理解该知识库的内容，能更准确的检索到内容，提高该知识库的命中率。"
-        maxlength="500"
+        maxlength="256"
         show-word-limit
         :autosize="{ minRows: 3 }"
         @blur="form.desc = form.desc.trim()"
diff --git a/ui/src/views/hit-test/index.vue b/ui/src/views/hit-test/index.vue
index 80d13c605..a2a39a515 100644
--- a/ui/src/views/hit-test/index.vue
+++ b/ui/src/views/hit-test/index.vue
@@ -44,7 +44,7 @@
                   <template #icon>
                     <AppAvatar :name="index + 1 + ''" class="mr-12 avatar-light" :size="22" />
                   </template>
-                  <div class="active-button primary">{{ item.similarity.toFixed(3) }}</div>
+                  <div class="active-button primary">{{ item.similarity?.toFixed(3) }}</div>
                   <template #footer>
                     <div class="footer-content flex-between">
                       <el-text>
@@ -226,8 +226,9 @@ function getHitTestList() {
 
 function refresh(data: any) {
   if (data) {
-    const index = paragraphDetail.value.findIndex((v) => v.id === data.id)
-    paragraphDetail.value.splice(index, 1, data)
+    const obj = paragraphDetail.value.filter((v) => v.id === data.id)[0]
+    obj.content = data.content
+    obj.title = data.title
   } else {
     paragraphDetail.value = []
     getHitTestList()