diff --git a/apps/setting/serializers/provider_serializers.py b/apps/setting/serializers/provider_serializers.py
index e032a0dcb..fcd04e9f6 100644
--- a/apps/setting/serializers/provider_serializers.py
+++ b/apps/setting/serializers/provider_serializers.py
@@ -23,7 +23,7 @@ from common.exception.app_exception import AppApiException
 from common.util.field_message import ErrMessage
 from common.util.rsa_util import rsa_long_decrypt, rsa_long_encrypt
 from dataset.models import DataSet
-from setting.models.model_management import Model, Status
+from setting.models.model_management import Model, Status, PermissionType
 from setting.models_provider import get_model, get_model_credential
 from setting.models_provider.base_model_provider import ValidCode, DownModelChunkStatus
 from setting.models_provider.constants.model_provider_constants import ModelProvideConstants
@@ -208,6 +208,27 @@ class ModelSerializer(serializers.Serializer):
                     credential),
                 'permission_type': model.permission_type}
 
+    class ModelParams(serializers.Serializer):
+        id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid("模型id"))
+
+        user_id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid("用户id"))
+
+        def is_valid(self, *, raise_exception=False):
+            super().is_valid(raise_exception=True)
+            model = QuerySet(Model).filter(id=self.data.get("id")).first()
+            if model is None:
+                raise AppApiException(500, '模型不存在')
+            if model.permission_type == PermissionType.PRIVATE and self.data.get('user_id') != str(model.user_id):
+                raise AppApiException(500, '没有权限访问到此模型')
+
+        def get_model_params(self, with_valid=True):
+            if with_valid:
+                self.is_valid(raise_exception=True)
+            model_id = self.data.get('id')
+            model = QuerySet(Model).filter(id=model_id).first()
+            credential = get_model_credential(model.provider, model.model_type, model.model_name)
+            return credential.get_model_params_setting_form(model.model_name).to_form_list()
+
     class Operate(serializers.Serializer):
         id = serializers.UUIDField(required=True, error_messages=ErrMessage.uuid("模型id"))
 
@@ -235,14 +256,6 @@ class ModelSerializer(serializers.Serializer):
                     'meta': model.meta
                     }
 
-        def get_model_params(self, with_valid=True):
-            if with_valid:
-                self.is_valid(raise_exception=True)
-            model_id = self.data.get('id')
-            model = QuerySet(Model).filter(id=model_id).first()
-            credential = get_model_credential(model.provider, model.model_type, model.model_name)
-            return credential.get_model_params_setting_form(model.model_name).to_form_list()
-
         def delete(self, with_valid=True):
             if with_valid:
                 self.is_valid(raise_exception=True)
diff --git a/apps/setting/views/model.py b/apps/setting/views/model.py
index 2c0ba3bca..d57a19471 100644
--- a/apps/setting/views/model.py
+++ b/apps/setting/views/model.py
@@ -92,7 +92,7 @@ class Model(APIView):
         @has_permissions(PermissionConstants.MODEL_READ)
         def get(self, request: Request, model_id: str):
             return result.success(
-                ModelSerializer.Operate(data={'id': model_id, 'user_id': request.user.id}).get_model_params())
+                ModelSerializer.ModelParams(data={'id': model_id, 'user_id': request.user.id}).get_model_params())
 
     class Operate(APIView):
         authentication_classes = [TokenAuth]
diff --git a/ui/src/views/application/ApplicationSetting.vue b/ui/src/views/application/ApplicationSetting.vue
index f9b92f289..f202cf59f 100644
--- a/ui/src/views/application/ApplicationSetting.vue
+++ b/ui/src/views/application/ApplicationSetting.vue
@@ -79,6 +79,7 @@
                   </div>
                 </template>
                 <el-select
+                  @change="model_change"
                   v-model="applicationForm.model_id"
                   :placeholder="$t('views.application.applicationForm.form.aiModel.placeholder')"
                   class="w-full"
@@ -450,7 +451,9 @@ const submit = async (formEl: FormInstance | undefined) => {
     }
   })
 }
-
+const model_change = (model_id: string) => {
+  AIModeParamSettingDialogRef.value?.reset_default(model_id)
+}
 const openAIParamSettingDialog = () => {
   const model_id = applicationForm.value.model_id
   if (!model_id) {
diff --git a/ui/src/views/application/component/AIModeParamSettingDialog.vue b/ui/src/views/application/component/AIModeParamSettingDialog.vue
index ec4ac9305..cf15e08bd 100644
--- a/ui/src/views/application/component/AIModeParamSettingDialog.vue
+++ b/ui/src/views/application/component/AIModeParamSettingDialog.vue
@@ -32,8 +32,6 @@
 
 <script setup lang="ts">
 import { ref } from 'vue'
-
-import type { FormInstance } from 'element-plus'
 import type { FormField } from '@/components/dynamics-form/type'
 import modelAPi from '@/api/model'
 import DynamicsForm from '@/components/dynamics-form/index.vue'
@@ -46,6 +44,7 @@ const dialogVisible = ref(false)
 const loading = ref(false)
 
 const open = (model_id: string, model_setting_data?: any) => {
+  form_data.value = {}
   modelAPi.getModelParamsForm(model_id, loading).then((ok) => {
     model_form_field.value = ok.data
     model_setting_data =
@@ -60,12 +59,25 @@ const open = (model_id: string, model_setting_data?: any) => {
   dialogVisible.value = true
 }
 
+const reset_default = (model_id: string) => {
+  form_data.value = {}
+  modelAPi.getModelParamsForm(model_id, loading).then((ok) => {
+    model_form_field.value = ok.data
+    const model_setting_data = ok.data
+      .map((item) => ({ [item.field]: item.default_value }))
+      .reduce((x, y) => ({ ...x, ...y }), {})
+    // 渲染动态表单
+    dynamicsFormRef.value?.render(model_form_field.value, model_setting_data)
+    emit('refresh', form_data.value)
+  })
+}
+
 const submit = async () => {
   emit('refresh', form_data.value)
   dialogVisible.value = false
 }
 
-defineExpose({ open })
+defineExpose({ open, reset_default })
 </script>
 
 <style lang="scss" scoped>
diff --git a/ui/src/workflow/nodes/ai-chat-node/index.vue b/ui/src/workflow/nodes/ai-chat-node/index.vue
index ad0496427..04b279988 100644
--- a/ui/src/workflow/nodes/ai-chat-node/index.vue
+++ b/ui/src/workflow/nodes/ai-chat-node/index.vue
@@ -42,6 +42,7 @@
             </div>
           </template>
           <el-select
+            @change="model_change"
             @wheel="wheel"
             @keydown="isKeyDown = true"
             @keyup="isKeyDown = false"
@@ -238,7 +239,9 @@ function submitDialog() {
   set(props.nodeModel.properties.node_data, 'prompt', cloneContent.value)
   dialogVisible.value = false
 }
-
+const model_change = (model_id: string) => {
+  AIModeParamSettingDialogRef.value?.reset_default(model_id)
+}
 const {
   params: { id }
 } = app.config.globalProperties.$route as any
@@ -314,7 +317,7 @@ const openCreateModel = (provider?: Provider) => {
 
 const openAIParamSettingDialog = (modelId: string) => {
   if (modelId) {
-    AIModeParamSettingDialogRef.value?.open(modelId,chat_data.value.model_params_setting)
+    AIModeParamSettingDialogRef.value?.open(modelId, chat_data.value.model_params_setting)
   }
 }
 
diff --git a/ui/src/workflow/nodes/question-node/index.vue b/ui/src/workflow/nodes/question-node/index.vue
index f9d1a0685..b2cdc0d02 100644
--- a/ui/src/workflow/nodes/question-node/index.vue
+++ b/ui/src/workflow/nodes/question-node/index.vue
@@ -16,7 +16,7 @@
         ref="questionNodeFormRef"
         hide-required-asterisk
       >
-      <el-form-item
+        <el-form-item
           label="AI 模型"
           prop="model_id"
           :rules="{
@@ -42,6 +42,7 @@
             </div>
           </template>
           <el-select
+            @change="model_change"
             @wheel="wheel"
             @keydown="isKeyDown = true"
             @keyup="isKeyDown = false"
@@ -231,6 +232,9 @@ function openDialog() {
   cloneContent.value = form_data.value.prompt
   dialogVisible.value = true
 }
+const model_change = (model_id: string) => {
+  AIModeParamSettingDialogRef.value?.reset_default(model_id)
+}
 function submitDialog() {
   set(props.nodeModel.properties.node_data, 'prompt', cloneContent.value)
   dialogVisible.value = false
@@ -255,7 +259,7 @@ function refreshParam(data: any) {
 
 const openAIParamSettingDialog = (modelId: string) => {
   if (modelId) {
-    AIModeParamSettingDialogRef.value?.open(modelId,form_data.value.model_params_setting)
+    AIModeParamSettingDialogRef.value?.open(modelId, form_data.value.model_params_setting)
   }
 }
 const form_data = computed({