diff --git a/api/products/views.py b/api/products/views.py
index 0e507ea..494d017 100644
--- a/api/products/views.py
+++ b/api/products/views.py
@@ -10,6 +10,7 @@ import time
 import base64
 import hashlib
 import mimetypes
+import json
 from collections import defaultdict
 from tastypie.resources import ModelResource
 from .models import *
@@ -678,12 +679,29 @@ def get_code_from_url(url):
 class QrVerifyView(BaseView):
     name = 'qr-verify'
 
+    def get_default_verification_model_name(self):
+        """Get default verification model name from global config"""
+        try:
+            gc = GlobalConfig.objects.filter(name='default_verification_model').first()
+            if gc and gc.value:
+                model_id = json.loads(gc.value)
+                if model_id:
+                    vm = VerificationModel.objects.filter(pk=model_id).first()
+                    if vm:
+                        return vm.name
+        except Exception:
+            pass
+        return None
+
     def do_v5_qr_verify(self, imgs, messages, model_name=None):
         files = {}
         for i, img in enumerate(imgs):
             files[f'frame_{i}_{img[1]}'] = img[0]
         
         data = {}
+        # Always pass model - use provided model_name or get default from global config
+        if not model_name:
+            model_name = self.get_default_verification_model_name()
         if model_name:
             data['model'] = model_name
         
@@ -742,7 +760,10 @@ class QrVerifyView(BaseView):
                 t = threading.Thread(target=oss_put, args=(image_name, img_data))
                 t.run()
             if sc.batch.feature_comparison_threshold > 0.01:
+                # Get model from batch, or fall back to default from global config
                 model_name = sc.batch.verification_model.name if sc.batch.verification_model else None
+                if not model_name:
+                    model_name = self.get_default_verification_model_name()
                 used_model = self.do_v5_qr_verify(imgs, messages, model_name=model_name)
                 sd.verification_model = used_model if used_model else None
             else:
diff --git a/web/src/views/system-settings.vue b/web/src/views/system-settings.vue
index f2760ee..4fc3a24 100644
--- a/web/src/views/system-settings.vue
+++ b/web/src/views/system-settings.vue
@@ -17,6 +17,17 @@
       </div>
       <button class="my-1 btn btn-primary" @click="save_debug_upload_configs">保存</button>
     </div>
+    <div class="section mb-2">
+      <h4>默认验证模型配置</h4>
+      <div>
+        默认验证模型：
+        <select class="form-control" v-model="default_verification_model_id">
+          <option value="">无（使用服务器默认）</option>
+          <option v-for="vm in verification_models" :key="vm.id" :value="vm.id">{{ vm.name }}</option>
+        </select>
+      </div>
+      <button class="my-1 btn btn-primary" @click="save_default_verification_model">保存</button>
+    </div>
   </div>
   <div class="fade-in">
     <div class="section">
@@ -47,6 +58,8 @@ export default {
     return {
       debug_upload_dir: '',
       debug_upload_neg_or_pos: '',
+      verification_models: [],
+      default_verification_model_id: '',
     };
   },
   computed: {
@@ -58,6 +71,18 @@ export default {
 
       r = await this.$root.api_get("/api/v1/global-config/?name=debug_upload_neg_or_pos");
       this.debug_upload_neg_or_pos = r.data.value || '';
+
+      // Load verification models
+      r = await this.$root.api_get_all("/api/v1/verification-model/");
+      this.verification_models = r;
+
+      // Load default verification model
+      try {
+        r = await this.$root.api_get("/api/v1/global-config/?name=default_verification_model");
+        this.default_verification_model_id = r.data.value || '';
+      } catch (e) {
+        this.default_verification_model_id = '';
+      }
     },
     async save_debug_upload_configs() {
       await this.$root.api_post("/api/v1/global-config/", {
@@ -71,6 +96,14 @@ export default {
       await this.reload();
       this.$root.notify("保存成功", "数据采集模式配置已更新");
     },
+    async save_default_verification_model() {
+      await this.$root.api_post("/api/v1/global-config/", {
+        name: 'default_verification_model',
+        value: this.default_verification_model_id || '',
+      });
+      await this.reload();
+      this.$root.notify("保存成功", "默认验证模型配置已更新");
+    },
   },
   mounted() {
     this.reload();