diff --git a/web/app/components/share/text-generation/run-once/index.tsx b/web/app/components/share/text-generation/run-once/index.tsx
index 36a157f0b7..8a7cf89ac3 100644
--- a/web/app/components/share/text-generation/run-once/index.tsx
+++ b/web/app/components/share/text-generation/run-once/index.tsx
@@ -19,6 +19,8 @@ import { getProcessedFiles } from '@/app/components/base/file-uploader/utils'
 import useBreakpoints, { MediaType } from '@/hooks/use-breakpoints'
 import cn from '@/utils/classnames'
 import BoolInput from '@/app/components/workflow/nodes/_base/components/before-run-form/bool-input'
+import CodeEditor from '@/app/components/workflow/nodes/_base/components/editor/code-editor'
+import { CodeLanguage } from '@/app/components/workflow/nodes/code/types'
 
 export type IRunOnceProps = {
   siteInfo: SiteInfo
@@ -149,6 +151,18 @@ const RunOnce: FC<IRunOnceProps> = ({
                       }}
                     />
                   )}
+                  {item.type === 'json_object' && (
+                    <CodeEditor
+                      language={CodeLanguage.json}
+                      value={inputs[item.key]}
+                      onChange={(value) => { handleInputsChange({ ...inputsRef.current, [item.key]: value }) }}
+                      noWrapper
+                      className='bg h-[80px] overflow-y-auto rounded-[10px] bg-components-input-bg-normal p-1'
+                      placeholder={
+                        <div className='whitespace-pre'>{item.json_schema}</div>
+                      }
+                    />
+                  )}
                 </div>
               </div>
             ))}
diff --git a/web/models/debug.ts b/web/models/debug.ts
index 0a1c9c8a23..630c48a970 100644
--- a/web/models/debug.ts
+++ b/web/models/debug.ts
@@ -60,6 +60,7 @@ export type PromptVariable = {
   icon?: string
   icon_background?: string
   hide?: boolean // used in frontend to hide variable
+  json_schema?: string
 }
 
 export type CompletionParams = {
diff --git a/web/utils/model-config.ts b/web/utils/model-config.ts
index c4c87e4ffe..7ef05e1e7a 100644
--- a/web/utils/model-config.ts
+++ b/web/utils/model-config.ts
@@ -30,6 +30,9 @@ export const userInputsFormToPromptVariables = (useInputs: UserInputFormItem[] |
       if (item.external_data_tool)
         return [item.external_data_tool.type, item.external_data_tool]
 
+      if (item.json_object)
+        return ['json_object', item.json_object]
+
       return ['select', item.select || {}]
     })()
     const is_context_var = dataset_query_variable === content?.variable