diff --git a/service-web/client/src/components/flow/Helper.tsx b/service-web/client/src/components/flow/Helper.tsx
index 3666fda..a5bff2f 100644
--- a/service-web/client/src/components/flow/Helper.tsx
+++ b/service-web/client/src/components/flow/Helper.tsx
@@ -47,7 +47,19 @@ export const generateAllIncomerOutputVariablesFormOptions: (id: string, inputSch
     value: key,
   }))
 
+  let currentNode = find(nodes, n => isEqual(id, n.id))
+  if (!currentNode) {
+    return []
+  }
+
   let incomerIds = getAllIncomerNodeById(id, nodes, edges)
+  if (currentNode.parentId) {
+    incomerIds = [
+      ...incomerIds,
+      ...getAllIncomerNodeById(currentNode.parentId, nodes, edges),
+    ]
+  }
+
   let incomerVariables: InputFormOptionsGroup[] = []
   for (const incomerId of incomerIds) {
     let nodeData = data[incomerId] ?? {}
@@ -74,6 +86,21 @@ export const generateAllIncomerOutputVariablesFormOptions: (id: string, inputSch
         variables: inputSchemaVariables,
       },
     ]),
+    ...(currentNode.parentId ? [
+      {
+        group: '循环入参',
+        variables: [
+          {
+            label: 'loopIndex (当前迭代索引)',
+            value: 'loopIndex',
+          },
+          {
+            label: 'loopItem (当前迭代对象)',
+            value: 'loopItem',
+          }
+        ]
+      }
+    ] : []),
     ...incomerVariables,
   ]