diff --git a/src/views/approval/flow/constants.ts b/src/views/approval/flow/constants.ts
index b8758ae..8ca14d5 100644
--- a/src/views/approval/flow/constants.ts
+++ b/src/views/approval/flow/constants.ts
@@ -9,6 +9,15 @@ export const NODE_TYPE_OPTIONS = [
   { value: 'ARCHIVE', label: '归档' }
 ];
 
+/** 提交环节：链首只读节点，不在可添加类型里 */
+export const NODE_SUBMIT = 'SUBMIT';
+
+/** 节点类型显示用（比可选项多一个提交环节） */
+export const NODE_TYPE_LABELS = [
+  ...NODE_TYPE_OPTIONS,
+  { value: NODE_SUBMIT, label: '提交' }
+];
+
 /** 需要固定组织编码的解析器 */
 export const ORG_RESOLVERS = ['orgLeaderByCode', 'orgDeputyByCode'];
 
@@ -17,6 +26,6 @@ export const WRITABLE_TYPES = ['APPROVE', 'COUNTERSIGN', 'CONFIRM'];
 
 /** 节点类型显示名 */
 export function nodeTypeLabel(type?: string) {
-  const item = NODE_TYPE_OPTIONS.find((option) => option.value === type);
+  const item = NODE_TYPE_LABELS.find((option) => option.value === type);
   return item ? item.label : type || '';
 }
diff --git a/src/views/approval/flow/index.vue b/src/views/approval/flow/index.vue
index 71c315b..60f0658 100644
--- a/src/views/approval/flow/index.vue
+++ b/src/views/approval/flow/index.vue
@@ -61,6 +61,19 @@
                 </a-button>
               </a-space>
             </div>
+            <div class="submit-stage">
+              <div class="submit-stage-header">
+                <span class="submit-stage-title">提交环节</span>
+                <a-radio-group v-model:value="submitMode" size="small">
+                  <a-radio-button value="FOLLOW">跟随代码</a-radio-button>
+                  <a-radio-button value="ON">必须上传附件</a-radio-button>
+                  <a-radio-button value="OFF">不必上传附件</a-radio-button>
+                </a-radio-group>
+              </div>
+              <div class="submit-stage-tip">
+                「跟随代码」沿用单据实现里声明的附件要求；选定后本环节作为链首只读节点发布，不产生待办。
+              </div>
+            </div>
             <a-empty
               v-if="!nodes.length"
               description="该流程尚未发布，点击「载入出厂模板」开始编辑"
@@ -157,17 +170,43 @@
   const historyLoading = ref(false);
   const history = ref<ApprovalFlowVersion[]>([]);
 
-  /* 深拷贝节点：编辑区不能直接改列表里的对象 */
-  const cloneNodes = (nodes?: ApprovalFlowNode[]) => {
-    return JSON.parse(JSON.stringify(nodes || [])) as ApprovalFlowNode[];
+  /* 提交环节：FOLLOW 沿用代码声明，ON/OFF 会以链首 SUBMIT 节点发布（ADR 0016） */
+  const submitMode = ref('FOLLOW');
+
+  /* 加载一条节点链：链首 SUBMIT 拆成独立的提交环节开关 */
+  const setChain = (chain?: ApprovalFlowNode[]) => {
+    const list = chain || [];
+    const head = list.length && list[0].type === 'SUBMIT' ? list[0] : null;
+    submitMode.value = head
+      ? head.attachmentRequired
+        ? 'ON'
+        : 'OFF'
+      : 'FOLLOW';
+    nodes.value = list.filter((node) => node.type !== 'SUBMIT');
+    editorRevision.value = editorRevision.value + 1;
+  };
+
+  /* 发布时拼回完整链：提交环节固定在最前 */
+  const buildChain = () => {
+    if (submitMode.value === 'FOLLOW') {
+      return nodes.value;
+    }
+    return [
+      {
+        key: 'submit',
+        type: 'SUBMIT',
+        name: '提交',
+        attachmentRequired: submitMode.value === 'ON'
+      },
+      ...nodes.value
+    ];
   };
 
   /* 加载编辑区：整链替换时递增 revision，强制节点卡片重新初始化 */
   const applyFlow = (flow: ApprovalFlow) => {
     current.value = flow;
     flowCode.value = flow.flowCode;
-    nodes.value = cloneNodes(flow.nodes);
-    editorRevision.value = editorRevision.value + 1;
+    setChain(flow.nodes);
   };
 
   const refreshFlows = (keepCode?: string) => {
@@ -236,8 +275,7 @@
       okText: '载入',
       cancelText: '取消',
       onOk: () => {
-        nodes.value = cloneNodes(current.value?.factoryNodes);
-        editorRevision.value = editorRevision.value + 1;
+        setChain(current.value?.factoryNodes);
       }
     });
   };
@@ -260,8 +298,7 @@
   };
 
   const loadVersion = (item: ApprovalFlowVersion) => {
-    nodes.value = cloneNodes(item.nodes);
-    editorRevision.value = editorRevision.value + 1;
+    setChain(item.nodes);
     historyVisible.value = false;
     message.info('已载入 v' + item.version + '，确认后点「保存并发布」');
   };
@@ -284,7 +321,7 @@
         saving.value = true;
         return publishFlowConfig({
           flowCode: current.value!.flowCode,
-          nodes: nodes.value
+          nodes: buildChain()
         })
           .then((data) => {
             saving.value = false;
@@ -349,6 +386,31 @@
     font-weight: 400;
   }
 
+  .submit-stage {
+    margin-bottom: 12px;
+    padding: 12px;
+    background: rgba(0, 0, 0, 0.02);
+    border: 1px dashed rgba(0, 0, 0, 0.12);
+    border-radius: 6px;
+  }
+
+  .submit-stage-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+  }
+
+  .submit-stage-title {
+    color: rgba(0, 0, 0, 0.85);
+    font-weight: 500;
+  }
+
+  .submit-stage-tip {
+    margin-top: 6px;
+    color: rgba(0, 0, 0, 0.45);
+    font-size: 12px;
+  }
+
   .flow-add {
     margin-bottom: 12px;
   }