diff --git a/ui/src/workflow/common/NodeContainer.vue b/ui/src/workflow/common/NodeContainer.vue
index ce0aa5ee8..f88956ddc 100644
--- a/ui/src/workflow/common/NodeContainer.vue
+++ b/ui/src/workflow/common/NodeContainer.vue
@@ -73,6 +73,7 @@ import { iconComponent } from '../icons/utils'
 import { copyClick } from '@/utils/clipboard'
 import { WorkflowType } from '@/enums/workflow'
 import { ElMessageBox, ElMessage } from 'element-plus'
+import { MsgError } from '@/utils/message'
 const height = ref<{
   stepContainerHeight: number
   inputContainerHeight: number
@@ -86,8 +87,16 @@ const height = ref<{
 const showEditIcon = ref(false)
 
 function editName(val: string) {
-  if (val) {
-    set(props.nodeModel.properties, 'stepName', val)
+  if (val.trim() && val.trim() !== props.nodeModel.properties.stepName) {
+    if (
+      !props.nodeModel.graphModel.nodes?.some(
+        (node: any) => node.properties.stepName === val.trim()
+      )
+    ) {
+      set(props.nodeModel.properties, 'stepName', val.trim())
+    } else {
+      MsgError('节点名称已存在！')
+    }
   }
 }
 const mousedown = () => {
diff --git a/ui/src/workflow/icons/globe-icon.vue b/ui/src/workflow/icons/global-icon.vue
similarity index 100%
rename from ui/src/workflow/icons/globe-icon.vue
rename to ui/src/workflow/icons/global-icon.vue
diff --git a/ui/src/workflow/nodes/ai-chat-node/index.vue b/ui/src/workflow/nodes/ai-chat-node/index.vue
index 2c7e393f3..cb24c68b1 100644
--- a/ui/src/workflow/nodes/ai-chat-node/index.vue
+++ b/ui/src/workflow/nodes/ai-chat-node/index.vue
@@ -117,6 +117,7 @@
           <el-input-number
             v-model="chat_data.dialogue_number"
             :min="0"
+            :value-on-clear="0"
             controls-position="right"
             class="w-full"
           />
@@ -153,7 +154,8 @@ const {
 } = app.config.globalProperties.$route as any
 
 // @ts-ignore
-const defaultPrompt = '{{开始.question}}'
+const defaultPrompt = `根据上下文优化和完善用户问题：{{开始.question}}
+请输出一个优化后的问题。`
 const form = {
   model_id: '',
   system: '',
diff --git a/ui/src/workflow/nodes/question-node/index.vue b/ui/src/workflow/nodes/question-node/index.vue
index 5307e9f0b..1eb022591 100644
--- a/ui/src/workflow/nodes/question-node/index.vue
+++ b/ui/src/workflow/nodes/question-node/index.vue
@@ -118,6 +118,7 @@
           <el-input-number
             v-model="form_data.dialogue_number"
             :min="0"
+            :value-on-clear="0"
             controls-position="right"
             class="w-full"
           />
@@ -152,10 +153,11 @@ const {
 } = app.config.globalProperties.$route as any
 
 // @ts-ignore
-const defaultPrompt = '{{问题优化.question}}'
+const defaultPrompt = `根据上下文优化和完善用户问题：{{开始.question}}
+请输出一个优化后的问题。`
 const form = {
   model_id: '',
-  system: '',
+  system: '你是一个问题优化大师',
   prompt: defaultPrompt,
   dialogue_number: 1
 }