diff --git a/src/api/module/flow.ts b/src/api/module/flow.ts
index 25511fe..f810b0f 100644
--- a/src/api/module/flow.ts
+++ b/src/api/module/flow.ts
@@ -119,13 +119,17 @@ class FlowApi {
     }
 
     // ==================== 管理面：流程定义 ====================
-    defList() {
-        return get(`${ROOT}/admin/def/list`);
+    defList(params?: { status?: number; appKey?: string }) {
+        return get(`${ROOT}/admin/def/list`, params);
+    }
+    /** 应用清单（"按应用筛选"下拉）：本校 flw_def 已标注 ∪ 已注册回调的应用 */
+    defAppKeys() {
+        return get(`${ROOT}/admin/def/appkeys`);
     }
     defGet(id: number | string) {
         return get(`${ROOT}/admin/def/get`, { id });
     }
-    defSave(body: { id?: number; code: string; name: string; contentJson: string; baseGuid?: string }) {
+    defSave(body: { id?: number; code: string; name: string; contentJson: string; baseGuid?: string; appKey?: string }) {
         return post(`${ROOT}/admin/def/save`, body);
     }
     defPublish(id: number | string) {
diff --git a/src/views/flow/admin/Defs.vue b/src/views/flow/admin/Defs.vue
index cee1e0e..141c839 100644
--- a/src/views/flow/admin/Defs.vue
+++ b/src/views/flow/admin/Defs.vue
@@ -23,11 +23,15 @@ const sourceText = ref("");
 const sourceTitle = ref("");
 // 操作按钮区 + 表格，无搜索、无分页
 const tableHeight = ref(Utils.useTableHeight({ isOperat: true }));
+// 按应用筛选（flw_def.app_key，2026-10-10）：下拉数据源来自 /def/appkeys
+const appKeys = ref<string[]>([]);
+const filterApp = ref("");
 
 const columns = [
     { title: "序号", type: "index", width: 70, align: "center" },
     { title: "流程", key: "name", minWidth: 180 },
     { title: "编码", key: "code", width: 160 },
+    { title: "应用", key: "appKey", width: 110, align: "center", render: (h: any, p: any) => h("span", p.row.appKey || "-") },
     { title: "版本", key: "version", width: 70, align: "center" },
     { title: "状态", width: 90, align: "center", render: (h: any, p: any) => {
         const c = p.row.status === 1 ? "green" : p.row.status === 0 ? "orange" : "gray";
@@ -58,12 +62,21 @@ const columns = [
 async function load() {
     loading.value = true;
     try {
-        rows.value = (await flowApi.defList().send()) || [];
+        rows.value = (await flowApi.defList({ appKey: filterApp.value || undefined }).send()) || [];
     } finally {
         loading.value = false;
     }
 }
 
+/** 应用清单（筛选下拉）：flw_def 已标注 ∪ 已注册回调的应用，失败降级为空下拉 */
+async function loadAppKeys() {
+    try {
+        appKeys.value = (await flowApi.defAppKeys().send()) || [];
+    } catch {
+        appKeys.value = [];
+    }
+}
+
 /** 新建：编辑器空模板（默认含一个待配置审批节点） */
 function onNew() {
     router.push({ path: "/admin/defs/editor" });
@@ -148,7 +161,10 @@ function onDiagram(row: any) {
     router.push({ path: "/diagram", query: { defId: row.id } });
 }
 
-onMounted(load);
+onMounted(() => {
+    load();
+    loadAppKeys();
+});
 </script>
 
 <template>
@@ -157,6 +173,10 @@ onMounted(load);
             <!-- 操作按钮区：主操作靠左（bsch应用页规范 §1） -->
             <div class="fix mb-12">
                 <Button class="fl" type="primary" size="large" @click="onNew">新建流程</Button>
+                <Select v-model="filterApp" clearable filterable placeholder="按应用筛选" class="fl"
+                    style="width: 200px; margin-left: 8px" @on-change="load">
+                    <Option v-for="k in appKeys" :key="k" :value="k">{{ k }}</Option>
+                </Select>
             </div>
 
             <Table :columns="columns" :data="rows" :loading="loading" class="link-table table-bottom-box"
diff --git a/src/views/flow/admin/def-editor/index.vue b/src/views/flow/admin/def-editor/index.vue
index 7cf28f1..8a50d7e 100644
--- a/src/views/flow/admin/def-editor/index.vue
+++ b/src/views/flow/admin/def-editor/index.vue
@@ -55,6 +55,10 @@ const baseGuid = ref("");
 /** 载入源定义的状态（已发布/停用版本进入编辑器时提示保存会新建草稿版本） */
 const sourceStatus = ref(0);
 const sourceVersion = ref(0);
+/** 归属应用（flw_def.app_key；按应用筛选维度，空=未分配） */
+const appKey = ref("");
+/** 应用清单下拉（本校已标注 ∪ 已注册回调），拉取失败降级为仅手输 */
+const appKeys = ref<string[]>([]);
 
 const model = reactive<EditorModel>(createEmptyModel());
 /** 科室映射聚合（mapList）：仅用于下拉选项与"无启用办理人"提示 */
@@ -172,6 +176,11 @@ async function load(): Promise<void> {
     try {
         await loadDepts();
         await loadRouters();
+        try {
+            appKeys.value = ((await flowApi.defAppKeys().send()) as string[]) || [];
+        } catch {
+            appKeys.value = [];
+        }
 
         const queryId = route.query.id ? Number(route.query.id) : null;
         const queryGuid = (route.query.baseGuid as string) || "";
@@ -190,6 +199,7 @@ async function load(): Promise<void> {
         sourceVersion.value = d?.version ?? 0;
         model.code = d?.code || "";
         model.name = d?.name || "";
+        appKey.value = d?.appKey || "";
         try {
             applyParsed(fromContentJson(JSON.parse(d?.contentJson || "{}")));
         } catch (e: any) {
@@ -354,6 +364,25 @@ async function onSave(): Promise<void> {
         Message.error(`校验未通过：${errors[0].text}`);
         return;
     }
+    // 新建：同编码软提示（编码是分类标签，多条流程线可共用同一编码，这里只提醒不阻断）
+    if (!editId.value && !baseGuid.value) {
+        const rows: any[] = (await flowApi.defList().send()) || [];
+        const sameCode = rows.filter((r) => r.code === model.code.trim()).length;
+        if (sameCode > 0) {
+            Modal.confirm({
+                title: "存在同编码流程",
+                content: `编码「${model.code.trim()}」已有 ${sameCode} 条流程，保存将新建一条独立流程线（版本从 v1 开始）。继续吗？`,
+                okText: "继续保存",
+                cancelText: "取消",
+                onOk: () => void doSave(),
+            });
+            return;
+        }
+    }
+    await doSave();
+}
+
+async function doSave(): Promise<void> {
     const content = JSON.stringify(toContentJson(model));
     saving.value = true;
     try {
@@ -364,6 +393,7 @@ async function onSave(): Promise<void> {
             name: model.name.trim(),
             contentJson: content,
             baseGuid: baseGuid.value || undefined,
+            appKey: (appKey.value || "").trim() || undefined,
         }).send();
         savedSnapshot.value = currentSnapshot.value;
         Message.success("已保存草稿");
@@ -446,6 +476,13 @@ onUnmounted(() => window.removeEventListener("beforeunload", onBeforeUnload));
                         :maxlength="40"
                     />
                 </label>
+                <label>
+                    应用
+                    <Select v-model="appKey" placeholder="归属应用，可空" style="width: 150px"
+                        clearable filterable allow-create>
+                        <Option v-for="k in appKeys" :key="k" :value="k">{{ k }}</Option>
+                    </Select>
+                </label>
             </div>
             <div class="hd-right">
                 <Button @click="settingsDrawer = true">流程设置</Button>