diff --git a/web/src/views/im/registrationInvite/CreateModal.vue b/web/src/views/im/registrationInvite/CreateModal.vue
index 5aac578..9aa61cc 100644
--- a/web/src/views/im/registrationInvite/CreateModal.vue
+++ b/web/src/views/im/registrationInvite/CreateModal.vue
@@ -20,6 +20,7 @@
           <span class="bound-user-name">{{ boundUser.nickname || boundUser.username || boundUser.phone || '--' }}（{{ boundUser.userId }}）</span>
           <n-button text type="error" @click="clearBoundUser">清除</n-button>
         </div>
+        <div v-if="bindInputUnverified" class="bind-user-tip">输入的用户ID未验证，请先点击搜索</div>
       </n-form-item>
       <n-form-item label="到期时间" path="expiresAt">
         <n-date-picker v-model:value="formValue.expiresAt" type="datetime" clearable />
@@ -31,14 +32,14 @@
     <template #action>
       <n-space justify="end">
         <n-button @click="closeModal">取消</n-button>
-        <n-button type="primary" :loading="loading" @click="submit">确认</n-button>
+        <n-button type="primary" :loading="loading" :disabled="bindInputUnverified" @click="submit">确认</n-button>
       </n-space>
     </template>
   </n-modal>
 </template>
 
 <script lang="ts" setup>
-  import { reactive, ref } from 'vue';
+  import { computed, reactive, ref } from 'vue';
   import { useMessage } from 'naive-ui';
   import { BatchCreate, Create } from '@/api/im/registrationInvite';
   import { List as UserList } from '@/api/imUser';
@@ -55,6 +56,12 @@
   const bindUserInput = ref('');
   const searching = ref(false);
   const boundUser = ref<any>(null);
+  // 最近一次已通过搜索验证的输入值；输入框有值但不等于它时视为未验证
+  const lastSearchedKeyword = ref('');
+  const bindInputUnverified = computed(() => {
+    const input = bindUserInput.value.trim();
+    return !!input && input !== lastSearchedKeyword.value;
+  });
   const formValue = reactive({
     quantity: 100,
     expiresAt: Date.now() + 7 * 24 * 3600 * 1000,
@@ -78,6 +85,7 @@
     formValue.boundUserId = '';
     bindUserInput.value = '';
     boundUser.value = null;
+    lastSearchedKeyword.value = '';
     showModal.value = true;
   }
 
@@ -100,6 +108,8 @@
         page: 1,
         perPage: 1,
       });
+      // 搜索成功返回即视为已验证（无论是否找到用户）
+      lastSearchedKeyword.value = keyword;
       const user = res?.list?.[0];
       if (!user) {
         message.warning('未找到该用户，将不绑定用户');
@@ -124,10 +134,16 @@
     boundUser.value = null;
     formValue.boundUserId = '';
     bindUserInput.value = '';
+    lastSearchedKeyword.value = '';
   }
 
   async function submit() {
     await formRef.value?.validate();
+    // 输入了用户ID但未点击搜索验证时，禁止提交，兜底拦截
+    if (bindInputUnverified.value) {
+      message.warning('请先点击搜索验证输入的用户ID');
+      return;
+    }
     loading.value = true;
     try {
       const params: any = {
@@ -174,5 +190,12 @@
   .bound-user-name {
     flex: 1;
   }
+
+  .bind-user-tip {
+    width: 100%;
+    margin-top: 4px;
+    color: #f0a020;
+    font-size: 12px;
+  }
 </style>