diff --git a/src/api/module/flow.ts b/src/api/module/flow.ts
index 3f2c05e..be01d7a 100644
--- a/src/api/module/flow.ts
+++ b/src/api/module/flow.ts
@@ -124,6 +124,10 @@ class FlowApi {
     mapLookupUser(userId: number) {
         return get(`${ROOT}/admin/map/lookupUser`, { userId });
     }
+    /** 选人组件数据源：学校组树（组→组内用户叶子） */
+    adminUserTree() {
+        return get(`${ROOT}/admin/user/tree`);
+    }
     /** 一键拉取教师组·预览（学校子树教师组容器 → 科室+组内成员） */
     mapGroupPreview() {
         return get(`${ROOT}/admin/map/groupPreview`);
diff --git a/src/components/UserCheckInput.vue b/src/components/UserCheckInput.vue
deleted file mode 100644
index 2ec7f83..0000000
--- a/src/components/UserCheckInput.vue
+++ /dev/null
@@ -1,165 +0,0 @@
-<template>
-    <!-- 通知对象选择：全部用户 / 指定用户（自旧前端 user_check_input.vue 适配） -->
-    <div class="check-user-wrap">
-        <div class="check-user-box">
-            <RadioGroup v-model="isCheckUserAll" class="radio" @on-change="userAllCheck">
-                <Radio :disabled="editDisabled" :label="0">{{ isEdit ? "现有" : "全部" }}用户</Radio>
-                <Radio :label="1">指定用户</Radio>
-            </RadioGroup>
-            <Input
-                type="text"
-                v-model="userNameStr"
-                readonly
-                :disabled="!isCheckUserAll"
-                placeholder="选择指定的用户"
-                class="input"
-            ></Input>
-            <Button icon="md-add" @click="checkUserShow" :disabled="!isCheckUserAll"></Button>
-            <Button icon="md-trash" @click="resetUser" :disabled="!isCheckUserAll"></Button>
-        </div>
-        <UserCheckModal
-            ref="userCheckModal"
-            :sources="sources"
-            :userids="tempUserIds"
-            @on-submit="submitUser"
-        />
-    </div>
-</template>
-
-<script lang="ts">
-/*
- * 通知对象选择输入（自旧前端 oldfront/src/components/user_check_input.vue 适配 Vue3）。
- * v-model 值为 "all" 或用户 id 逗号串；切换到「指定用户」直接弹出选择用户弹窗。
- */
-import UserCheckModal from "@/components/UserCheckModal.vue";
-import { baseApi, settingApi } from "@/api/module/notice";
-
-export default {
-    name: "UserCheckInput",
-    components: { UserCheckModal },
-    props: {
-        modelValue: {
-            type: String,
-            default: "all",
-        },
-        /** 编辑态：全部用户选项禁用为「现有用户」 */
-        isEdit: {
-            type: Boolean,
-            default: false,
-        },
-    },
-    emits: ["update:modelValue"],
-    data() {
-        return {
-            isCheckUserAll: 0 as number,
-            tempUserIds: [] as any[],
-            userNameStr: "",
-            editDisabled: false,
-            sources: [
-                {
-                    name: "基础平台",
-                    loader: () => baseApi.getSchoolAll().send() as Promise<any[]>,
-                },
-                {
-                    name: "自定义组",
-                    loader: () => settingApi.getGroupTree().send() as Promise<any[]>,
-                },
-            ],
-        };
-    },
-    created() {
-        if (this.modelValue === "all") {
-            this.isCheckUserAll = 0;
-            this.userNameStr = this.isEdit ? "现有用户" : "全部用户";
-        } else {
-            this.isCheckUserAll = 1;
-            this.tempUserIds = this.modelValue.split(",").map((x) => parseInt(x)).filter((x) => !isNaN(x));
-        }
-    },
-    methods: {
-        checkUserShow() {
-            (this.$refs.userCheckModal as any).show();
-        },
-        resetUser() {
-            //清除用户
-            this.tempUserIds = [];
-            this.userNameStr = "";
-            this.$emit("update:modelValue", "");
-        },
-        userAllCheck(type: number) {
-            let tempIds: any = String(this.modelValue || "")
-                .split(",")
-                .map((x) => parseInt(x))
-                .filter((x) => !isNaN(x));
-            if (type == 0) {
-                if (this.isEdit) {
-                    this.tempUserIds = tempIds;
-                    this.userNameStr = "现有用户";
-                    this.$emit("update:modelValue", String(tempIds));
-                } else {
-                    this.tempUserIds = [];
-                    this.userNameStr = "全部用户";
-                    this.$emit("update:modelValue", "all");
-                }
-            } else {
-                if (this.isEdit) {
-                    this.editDisabled = true;
-                }
-                this.tempUserIds = tempIds;
-                this.userNameStr = "";
-                this.checkUserShow();
-            }
-        },
-        submitUser(arr: any[]) {
-            //确认用户
-            this.userNameStr = arr.map((x) => x.name).join("、");
-            const ids = arr.map((x) => x.id).join(",");
-            this.$emit("update:modelValue", ids || "all");
-            if (!arr.length) {
-                // 清空后回到全部用户
-                this.isCheckUserAll = 0;
-                this.userNameStr = "全部用户";
-                this.$emit("update:modelValue", "all");
-            }
-        },
-    },
-    watch: {
-        modelValue(val: string) {
-            if (val === "all") {
-                this.isCheckUserAll = 0;
-                this.userNameStr = this.isEdit ? "现有用户" : "全部用户";
-            } else if (val === "") {
-                this.userNameStr = "";
-            } else {
-                // 编辑回显：指定用户 id 串
-                this.isCheckUserAll = 1;
-                this.tempUserIds = val
-                    .split(",")
-                    .map((x) => parseInt(x))
-                    .filter((x) => !isNaN(x));
-            }
-        },
-    },
-};
-</script>
-
-<style lang="scss" scoped>
-.check-user-wrap {
-    width: 100%;
-    .check-user-box {
-        display: flex;
-        align-items: center;
-        gap: 8px;
-        .radio {
-            width: 180px;
-            flex: none;
-            font-size: 12px;
-            vertical-align: middle;
-            line-height: 32px;
-        }
-        .input {
-            flex: 1;
-        }
-    }
-}
-</style>
diff --git a/src/components/UserCheckModal.vue b/src/components/UserCheckModal.vue
index 49e6a31..448c71a 100644
--- a/src/components/UserCheckModal.vue
+++ b/src/components/UserCheckModal.vue
@@ -51,27 +51,37 @@
                 </svg>
             </div>
             <div class="user-panel fl">
-                <div class="title-box fix">
-                    <Checkbox @on-change="checkAllUser" v-model="isCheckUserAll">全选</Checkbox>
-                    <div class="fr">{{ tempUserList.length }}</div>
-                    <a
-                        href="javascript:;"
-                        @click="delCheckUser"
-                        v-if="tempUserList.findIndex((x: any) => x.isCheck) > -1"
-                        >删除选中</a
-                    >
-                </div>
-                <ul class="user-box">
-                    <li
-                        v-for="item in tempUserList"
-                        :key="item.id"
-                        :class="{ active: item.isCheck }"
-                        @click="checkUserOne(item)"
-                    >
-                        {{ item.name }}
-                        <span class="info">{{ item.group }}</span>
-                    </li>
-                </ul>
+                <template v-if="multiple">
+                    <div class="title-box fix">
+                        <Checkbox @on-change="checkAllUser" v-model="isCheckUserAll">全选</Checkbox>
+                        <div class="fr">{{ tempUserList.length }}</div>
+                        <a
+                            href="javascript:;"
+                            @click="delCheckUser"
+                            v-if="tempUserList.findIndex((x: any) => x.isCheck) > -1"
+                            >删除选中</a
+                        >
+                    </div>
+                    <ul class="user-box">
+                        <li
+                            v-for="item in tempUserList"
+                            :key="item.id"
+                            :class="{ active: item.isCheck }"
+                            @click="checkUserOne(item)"
+                        >
+                            {{ item.name }}
+                            <span class="info">{{ item.group }}</span>
+                        </li>
+                    </ul>
+                </template>
+                <template v-else>
+                    <div class="title-box fix"><b>已选择</b></div>
+                    <div class="single-box" v-if="selectedUser">
+                        {{ selectedUser.name }}
+                        <span class="info">{{ selectedUser.group }}</span>
+                    </div>
+                    <div class="single-empty" v-else>在左侧树中点击选中一名用户</div>
+                </template>
             </div>
         </div>
         <template #footer>
@@ -112,6 +122,11 @@ export default {
             type: Boolean,
             default: false,
         },
+        /** 单选模式：树上点击叶子即选定（flow-center 办理人映射等单选场景）；默认多选与 Notice 口径一致 */
+        multiple: {
+            type: Boolean,
+            default: true,
+        },
     },
     emits: ["update:userids", "on-submit"],
     data() {
@@ -119,6 +134,9 @@ export default {
             ztreeDomId: "user_check_tree_" + Math.floor(Math.random() * 1e8),
             modal: false,
             tabIndex: 0,
+            /** 单选模式当前选中（每次打开重置） */
+            selectedUser: null as any,
+            tabIndex: 0,
             /** 每次打开弹窗自增，强制重建 Tabs，避免上次 tab 高亮残留与数据错位 */
             tabKey: 0,
             /** 树加载序号：tab 快速切换时只渲染最后一次请求的结果 */
@@ -146,6 +164,7 @@ export default {
     methods: {
         show() {
             this.modal = true;
+            this.selectedUser = null;
             // 重置到第一个 tab：显式赋值 + key 重建 Tabs，保证高亮与数据一致
             this.tabIndex = 0;
             this.tabKey++;
@@ -175,9 +194,19 @@ export default {
         },
         handleSelect(query: string) {
             if (query.indexOf(",") != -1) query = query.split(",")[0];
-            var treeObj = ($.fn as any).zTree.getZTreeObj(this.ztreeDomId);
-            var node = treeObj.getNodeByParam("name", query, null);
-            if (!!node) treeObj.checkNode(node, true, true, true);
+            const findObj = this.currentTreeFlatten.find(
+                (x: any) => x.type == 2 && x.name == query.split(",")[0]
+            );
+            if (!findObj) return;
+            if (this.multiple) {
+                var treeObj = ($.fn as any).zTree.getZTreeObj(this.ztreeDomId);
+                var node = treeObj.getNodeByParam("name", query, null);
+                if (!!node) treeObj.checkNode(node, true, true, true);
+            } else {
+                // 单选：搜索命中即选定并直接提交（提交后可再清空）
+                this.selectedUser = { ...findObj };
+                this.submit();
+            }
         },
         /**
          * ztree 数据预处理：拼接 pid 保证同人多组时 id 可区分；叶子标记 type=2。
@@ -240,7 +269,7 @@ export default {
                     showIcon: true,
                 },
                 check: {
-                    enable: true,
+                    enable: this.multiple,
                     chkboxType: { Y: "ps", N: "ps" },
                 },
                 callback: {},
@@ -283,8 +312,22 @@ export default {
                 }
             }
             treeSetting.callback.onClick = (event: any, treeId: string, treeNode: any) => {
-                let check = treeNode.checked;
                 let treeObj = ($.fn as any).zTree.getZTreeObj(treeId);
+                if (!_this.multiple) {
+                    // 单选：叶子节点点击即选定；组节点仅展开（关闭复选，无勾选语义）
+                    if (treeNode.type == 2) {
+                        treeObj.selectNode(treeNode, false, false);
+                        _this.selectedUser = {
+                            id: _this.getSplitId(treeNode.id),
+                            name: treeNode.name,
+                            group: treeNode.group || "",
+                        };
+                    } else {
+                        treeObj.expandNode(treeNode, !treeNode.open, false, false);
+                    }
+                    return;
+                }
+                let check = treeNode.checked;
                 treeObj.checkNode(treeNode, !check, true);
                 formatUser(treeNode, treeNode.checked);
             };
@@ -333,6 +376,17 @@ export default {
         },
         submit() {
             const _this = this;
+            if (!_this.multiple) {
+                if (!_this.selectedUser) {
+                    Message.warning("请先选择用户");
+                    return;
+                }
+                const u: any = { id: _this.selectedUser.id, name: _this.selectedUser.name, group: _this.selectedUser.group };
+                this.$emit("update:userids", [u.id]);
+                this.$emit("on-submit", [u]);
+                this.modal = false;
+                return;
+            }
             let idsArr = this.tempUserList.map((x: any) => _this.getSplitId(x.id));
             idsArr = Array.from(new Set(idsArr));
             this.$emit("update:userids", idsArr);
@@ -412,6 +466,21 @@ export default {
             background: #e4edf6;
         }
     }
+    .single-box {
+        padding: 12px;
+        line-height: 32px;
+        .info {
+            float: right;
+            margin-right: 12px;
+            font-size: 12px;
+            color: gray;
+        }
+    }
+    .single-empty {
+        padding: 12px;
+        font-size: 12px;
+        color: #c5c8ce;
+    }
 }
 .arrow-box {
     width: 128px;
diff --git a/src/components/UserSelectInput.vue b/src/components/UserSelectInput.vue
new file mode 100644
index 0000000..10485dc
--- /dev/null
+++ b/src/components/UserSelectInput.vue
@@ -0,0 +1,95 @@
+<template>
+    <!-- 单选用户输入（参照 Notice 自定义组选人范式）：readonly Input + 选择按钮 + 清空；
+         v-model=用户 id；display-name 回显姓名快照（调用方已知姓名时随值下传） -->
+    <div class="sel-user-box">
+        <Input
+            type="text"
+            v-model="nameText"
+            readonly
+            placeholder="点击「选择」指定用户"
+            class="input"
+        ></Input>
+        <Button icon="md-add" @click="openModal">选择</Button>
+        <Button icon="md-trash" v-if="modelValue" @click="reset"></Button>
+        <UserCheckModal
+            ref="userCheckModal"
+            :sources="sources"
+            :multiple="false"
+            @on-submit="onSubmit"
+        />
+    </div>
+</template>
+
+<script lang="ts">
+import UserCheckModal from "@/components/UserCheckModal.vue";
+import { flowApi } from "@/api/module/flow";
+
+export default {
+    name: "UserSelectInput",
+    components: { UserCheckModal },
+    props: {
+        modelValue: {
+            type: Number,
+            default: null,
+        },
+        /** 当前 id 的姓名快照（编辑回显/选中即得，避免 #id 兜底） */
+        displayName: {
+            type: String,
+            default: "",
+        },
+    },
+    emits: ["update:modelValue", "update:displayName", "on-change"],
+    data() {
+        return {
+            nameText: this.displayName,
+            sources: [
+                {
+                    name: "基础平台",
+                    loader: () => flowApi.adminUserTree().send() as Promise<any[]>,
+                },
+            ],
+        };
+    },
+    methods: {
+        openModal() {
+            (this.$refs.userCheckModal as any).show();
+        },
+        /** 单选弹窗提交：数组恒为 1 条（多选复用同组件） */
+        onSubmit(arr: any[]) {
+            if (!arr || !arr.length) return;
+            const u = arr[0];
+            this.nameText = u.name + "（" + u.id + "）";
+            this.$emit("update:modelValue", u.id);
+            this.$emit("update:displayName", u.name);
+            this.$emit("on-change", u);
+        },
+        reset() {
+            this.nameText = "";
+            this.$emit("update:modelValue", null);
+            this.$emit("update:displayName", "");
+            this.$emit("on-change", null);
+        },
+    },
+    watch: {
+        modelValue(val: number) {
+            // 外部清空/重置时同步清姓名
+            if (!val) this.nameText = "";
+            else if (!this.nameText) this.nameText = "#" + val;
+        },
+        displayName(val: string) {
+            this.nameText = val;
+        },
+    },
+};
+</script>
+
+<style lang="scss" scoped>
+.sel-user-box {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    .input {
+        flex: 1;
+    }
+}
+</style>
diff --git a/src/views/flow/admin/Maps.vue b/src/views/flow/admin/Maps.vue
index 9fb29b7..61f446d 100644
--- a/src/views/flow/admin/Maps.vue
+++ b/src/views/flow/admin/Maps.vue
@@ -1,7 +1,8 @@
 <script setup lang="ts">
-// 办理人映射管理（概览 §4.7/§六）：DEPT_KEY → 办理人；成员检索经 UserBase /oapi/user/byId 补姓名
+// 办理人映射管理（概览 §4.7/§六）：DEPT_KEY → 办理人；办理人改为弹窗选人（参照 Notice 选人范式）
 import { ref, onMounted } from "vue";
 import { Message } from "view-ui-plus";
+import UserSelectInput from "@/components/UserSelectInput.vue";
 import { flowApi } from "@/api/module/flow";
 import Utils from "@/utils";
 
@@ -12,7 +13,6 @@ const rows = ref<any[]>([]);
 const saveVisible = ref(false);
 const saving = ref(false);
 const form = ref<any>({ deptKey: "", deptName: "", userId: null, userName: "" });
-const lookingUp = ref(false);
 
 // 一键拉取教师组（预览确认后批量导入）
 const groupVisible = ref(false);
@@ -79,26 +79,14 @@ function onAdd() {
     saveVisible.value = true;
 }
 
-async function onLookup() {
-    if (!form.value.userId) {
-        Message.warning("请先填用户ID");
-        return;
-    }
-    lookingUp.value = true;
-    try {
-        const u: any = await flowApi.mapLookupUser(form.value.userId).send();
-        form.value.userName = u?.name || "";
-        Message.success(`检索到用户：${u?.name || "-"}`);
-    } catch {
-        Message.error("UserBase 检索失败");
-    } finally {
-        lookingUp.value = false;
-    }
+function onUserPick(u: any) {
+    // 选人组件回传 id+name 同帧快照（姓名不再自查）
+    form.value.userName = u?.name || "";
 }
 
 async function onSave() {
     if (!form.value.deptKey.trim() || !form.value.userId) {
-        Message.warning("科室编码与用户ID必填");
+        Message.warning("科室编码与办理人必填");
         return;
     }
     saving.value = true;
@@ -144,12 +132,14 @@ onMounted(load);
                 <FormItem label="科室名称">
                     <Input v-model="form.deptName" placeholder="如 医保办（可空）" />
                 </FormItem>
-                <FormItem label="用户ID">
-                    <Input v-model="form.userId" placeholder="UserBase 用户主键" />
-                </FormItem>
-                <FormItem label="姓名快照">
-                    <Input v-model="form.userName" placeholder="可留空，点检索自动补全" style="width: 180px" />
-                    <Button :loading="lookingUp" @click="onLookup" style="margin-left: 8px">检索</Button>
+                <FormItem label="办理人">
+                    <UserSelectInput
+                        :model-value="form.userId"
+                        :display-name="form.userName"
+                        @update:model-value="form.userId = $event"
+                        @update:display-name="form.userName = $event"
+                        @on-change="onUserPick"
+                    />
                 </FormItem>
             </Form>
             <template #footer>
diff --git a/src/views/flow/admin/def-editor/components/ApprovalDrawer.vue b/src/views/flow/admin/def-editor/components/ApprovalDrawer.vue
index 4a28c5b..43e51e6 100644
--- a/src/views/flow/admin/def-editor/components/ApprovalDrawer.vue
+++ b/src/views/flow/admin/def-editor/components/ApprovalDrawer.vue
@@ -1,8 +1,10 @@
 <script setup lang="ts">
 // 审批节点配置抽屉（方案 §3.4）：打开时把节点值拷进本地表单，确定时写回——
 // 分段控件切换只改本地状态，不会因重渲染丢失未保存输入（原型阶段踩过该坑）。
+// 指定用户改为树形选人弹窗（参照 Notice 自定义组选人），id+name 同帧拿到，不再手输 ID。
 import { computed, inject, reactive, ref, watch } from "vue";
 import { Message } from "view-ui-plus";
+import UserCheckModal from "@/components/UserCheckModal.vue";
 import { flowApi } from "@/api/module/flow";
 import { ApprovalNode, EDITOR_CTX } from "../model";
 
@@ -28,8 +30,13 @@ const form = reactive({
     deadlineHours: null as number | null,
 });
 
-const lookupId = ref<number | null>(null);
-const lookingUp = ref(false);
+const userCheckModal = ref<any>();
+const userModalSources = [
+    {
+        name: "基础平台",
+        loader: () => flowApi.adminUserTree().send() as Promise<any[]>,
+    },
+];
 
 function syncFromNode(): void {
     const n = props.node;
@@ -40,7 +47,6 @@ function syncFromNode(): void {
     form.userIds = n.assignee?.type === "USERS" ? [...n.assignee.userIds] : [];
     form.countersign = n.countersign;
     form.deadlineHours = n.deadlineHours;
-    lookupId.value = null;
 }
 
 watch(
@@ -76,24 +82,19 @@ function userNameOf(id: number): string {
     return ctx.userNames[id] || `#${id}`;
 }
 
-async function onLookup(): Promise<void> {
-    if (!lookupId.value) {
-        Message.warning("请先填用户ID");
-        return;
-    }
-    const id = Number(lookupId.value);
-    lookingUp.value = true;
-    try {
-        const u: any = await flowApi.mapLookupUser(id).send();
-        ctx.userNames[id] = u?.name || `#${id}`;
-        if (!form.userIds.includes(id)) form.userIds.push(id);
-        lookupId.value = null;
-        Message.success(`已添加：${u?.name || `#${id}`}`);
-    } catch {
-        Message.error("UserBase 检索失败");
-    } finally {
-        lookingUp.value = false;
+/** 选人弹窗提交：选中后的 id+name 合入本地 userIds 与姓名快照（不再逐个 byId 检索） */
+function onUsersPicked(arr: any[]): void {
+    let added = 0;
+    for (const u of arr || []) {
+        if (u?.id == null) continue;
+        const id = Number(u.id);
+        if (!form.userIds.includes(id)) {
+            form.userIds.push(id);
+            added++;
+        }
+        if (u.name) ctx.userNames[id] = u.name;
     }
+    Message.success(`已选择 ${added} 名用户`);
 }
 
 function removeUser(id: number): void {
@@ -162,8 +163,7 @@ function onRemove(): void {
                 <div class="fld">
                     <label>指定用户</label>
                     <div class="user-add">
-                        <InputNumber v-model="lookupId" :min="1" placeholder="填 UserBase 用户ID" style="flex: 1" />
-                        <Button type="primary" :loading="lookingUp" @click="onLookup">检索并添加</Button>
+                        <Button type="primary" @click="userCheckModal?.show()">选择用户</Button>
                     </div>
                     <div class="user-tags">
                         <Tag
@@ -208,6 +208,13 @@ function onRemove(): void {
             <Button type="primary" @click="onOk">确定</Button>
         </div>
     </Drawer>
+
+    <UserCheckModal
+        ref="userCheckModal"
+        :sources="userModalSources"
+        :userids="form.userIds"
+        @on-submit="onUsersPicked"
+    />
 </template>
 
 <style scoped>