diff --git a/server-api/app/controller/admin/AppraisalTasksController.php b/server-api/app/controller/admin/AppraisalTasksController.php
index 1c54a42..129bbdb 100644
--- a/server-api/app/controller/admin/AppraisalTasksController.php
+++ b/server-api/app/controller/admin/AppraisalTasksController.php
@@ -2150,6 +2150,8 @@ class AppraisalTasksController
             $verify = $this->createOrUpdateVerifyRecord($report, $now);
 
             if (($report['report_type'] ?? 'appraisal') === 'appraisal' && (int)($report['order_id'] ?? 0) > 0) {
+                (new MaterialTagService())->syncBoundTagForReport($report, $request);
+
                 Db::name('orders')->where('id', (int)$report['order_id'])->update([
                     'order_status' => 'report_published',
                     'display_status' => '报告已出具',
diff --git a/server-api/app/controller/admin/ReportsController.php b/server-api/app/controller/admin/ReportsController.php
index 5474092..00a0aea 100644
--- a/server-api/app/controller/admin/ReportsController.php
+++ b/server-api/app/controller/admin/ReportsController.php
@@ -435,8 +435,10 @@ class ReportsController
             $effectivePublishTime = $report['publish_time'] ?: $now;
             $isOrderAppraisalReport = ($report['report_type'] ?? 'appraisal') === 'appraisal' && (int)($report['order_id'] ?? 0) > 0;
             $materialTag = null;
+            $materialTagService = new MaterialTagService();
             if ($isOrderAppraisalReport) {
-                $materialTag = (new MaterialTagService())->findBoundTagForReport($id);
+                $materialTag = $materialTagService->findBoundTagForReport($id)
+                    ?: $materialTagService->syncBoundTagForReport($report, $request);
                 if (!$materialTag) {
                     if ($qrInput === '') {
                         Db::rollback();
@@ -452,7 +454,7 @@ class ReportsController
                         return api_error('报告未关联鉴定任务，不能绑定吊牌发布', 422);
                     }
 
-                    $materialTag = (new MaterialTagService())->bindTagToReportByTask((int)$task['id'], $qrInput, $request);
+                    $materialTag = $materialTagService->bindTagToReportByTask((int)$task['id'], $qrInput, $request);
                 }
             }
 
@@ -476,6 +478,7 @@ class ReportsController
 
             if ($isOrderAppraisalReport) {
                 $this->refreshAppraisalSnapshot((int)$report['id'], (int)$report['order_id'], $report['service_provider'], $now);
+                $materialTag = $materialTagService->syncBoundTagForReport($report, $request) ?: $materialTag;
             }
 
             $verify = $this->createOrUpdateVerifyRecord($report, $now);
diff --git a/server-api/app/support/MaterialTagService.php b/server-api/app/support/MaterialTagService.php
index 76f7a3d..02b72ec 100644
--- a/server-api/app/support/MaterialTagService.php
+++ b/server-api/app/support/MaterialTagService.php
@@ -484,6 +484,102 @@ class MaterialTagService
         return $this->formatTagCode($tag, $report ?: null);
     }
 
+    public function syncBoundTagForReport(array $report, ?Request $request = null): ?array
+    {
+        $reportId = (int)($report['id'] ?? 0);
+        $orderId = (int)($report['order_id'] ?? 0);
+        $reportNo = trim((string)($report['report_no'] ?? ''));
+        if ($reportId <= 0 || $orderId <= 0 || $reportNo === '' || ($report['report_type'] ?? 'appraisal') !== 'appraisal') {
+            return null;
+        }
+
+        $tag = Db::name('material_tag_codes')->where('report_id', $reportId)->find();
+        if (!$tag) {
+            $tag = Db::name('material_tag_codes')
+                ->where('bound_order_id', $orderId)
+                ->where('bind_status', 'bound')
+                ->where('status', '<>', 'invalid')
+                ->order('bound_at', 'desc')
+                ->order('id', 'desc')
+                ->find();
+        }
+        if (!$tag && $reportNo !== '') {
+            $tag = Db::name('material_tag_codes')
+                ->where('report_no', $reportNo)
+                ->where('bind_status', 'bound')
+                ->where('status', '<>', 'invalid')
+                ->order('id', 'desc')
+                ->find();
+        }
+        if (!$tag) {
+            return null;
+        }
+
+        $batch = Db::name('material_batches')->where('id', (int)$tag['batch_id'])->find();
+        if (($tag['status'] ?? 'active') === 'invalid' || ($batch && ($batch['status'] ?? 'active') === 'invalid')) {
+            return null;
+        }
+
+        $now = date('Y-m-d H:i:s');
+        $payload = [
+            'report_id' => $reportId,
+            'report_no' => $reportNo,
+            'bind_status' => 'bound',
+            'bound_order_id' => $orderId,
+            'updated_at' => $now,
+        ];
+        if (empty($tag['bound_by'])) {
+            $payload['bound_by'] = $request ? ((int)$request->header('x-admin-id', 0) ?: null) : null;
+        }
+        if (trim((string)($tag['bound_by_name'] ?? '')) === '') {
+            $payload['bound_by_name'] = $request ? trim((string)$request->header('x-admin-name', '')) : '';
+        }
+        if (empty($tag['bound_at'])) {
+            $payload['bound_at'] = $now;
+        }
+
+        Db::name('material_tag_codes')->where('id', (int)$tag['id'])->update($payload);
+        $fresh = Db::name('material_tag_codes')->where('id', (int)$tag['id'])->find();
+        return $this->formatTagCode($fresh ?: array_merge($tag, $payload), $report);
+    }
+
+    private function findPublishedReportForTag(array $tag): ?array
+    {
+        if ((int)($tag['report_id'] ?? 0) > 0) {
+            $report = Db::name('reports')
+                ->where('id', (int)$tag['report_id'])
+                ->where('report_status', 'published')
+                ->find();
+            if ($report) {
+                return $report;
+            }
+        }
+
+        $reportNo = trim((string)($tag['report_no'] ?? ''));
+        if ($reportNo !== '') {
+            $report = Db::name('reports')
+                ->where('report_no', $reportNo)
+                ->where('report_status', 'published')
+                ->find();
+            if ($report) {
+                return $report;
+            }
+        }
+
+        $orderId = (int)($tag['bound_order_id'] ?? 0);
+        if ($orderId <= 0) {
+            return null;
+        }
+
+        return Db::name('reports')
+            ->where('order_id', $orderId)
+            ->where('report_type', 'appraisal')
+            ->where('report_status', 'published')
+            ->order('publish_time', 'desc')
+            ->order('id', 'desc')
+            ->find() ?: null;
+    }
+
     public function showPublicTag(string $token, Request $request): array
     {
         $tag = Db::name('material_tag_codes')->where('qr_token', $token)->find();
@@ -521,6 +617,14 @@ class MaterialTagService
         $report = (int)($tag['report_id'] ?? 0) > 0
             ? Db::name('reports')->where('id', (int)$tag['report_id'])->find()
             : null;
+        $publishedReport = $this->findPublishedReportForTag($tag);
+        if ($publishedReport && (!$report || ($report['report_status'] ?? '') !== 'published' || (int)$report['id'] !== (int)$publishedReport['id'])) {
+            $this->syncBoundTagForReport($publishedReport, $request);
+            $tag = Db::name('material_tag_codes')->where('id', (int)$tag['id'])->find() ?: $tag;
+            $tag['scan_count'] = max((int)$tag['scan_count'], 1);
+            $tag['last_scanned_at'] = $now;
+            $report = $publishedReport;
+        }
 
         if (!$report) {
             return [
@@ -597,6 +701,12 @@ class MaterialTagService
         $report = (int)($tag['report_id'] ?? 0) > 0
             ? Db::name('reports')->where('id', (int)$tag['report_id'])->find()
             : null;
+        $publishedReport = $this->findPublishedReportForTag($tag);
+        if ($publishedReport && (!$report || ($report['report_status'] ?? '') !== 'published' || (int)$report['id'] !== (int)$publishedReport['id'])) {
+            $this->syncBoundTagForReport($publishedReport, $request);
+            $tag = Db::name('material_tag_codes')->where('id', (int)$tag['id'])->find() ?: $tag;
+            $report = $publishedReport;
+        }
 
         $passed = $report
             && ($report['report_status'] ?? '') === 'published'
@@ -963,8 +1073,7 @@ class MaterialTagService
         $tag = Db::name('material_tag_codes')->where('qr_token', $token)->find();
         if (
             !$tag
-            || (int)($tag['report_id'] ?? 0) <= 0
-            || ($tag['bind_status'] ?? '') !== 'bound'
+            || ((int)($tag['report_id'] ?? 0) <= 0 && (int)($tag['bound_order_id'] ?? 0) <= 0 && trim((string)($tag['report_no'] ?? '')) === '')
             || ($tag['status'] ?? 'active') === 'invalid'
         ) {
             return '';
@@ -975,10 +1084,10 @@ class MaterialTagService
             return '';
         }
 
-        $report = Db::name('reports')
-            ->where('id', (int)$tag['report_id'])
-            ->where('report_status', 'published')
-            ->find();
+        $report = $this->findPublishedReportForTag($tag);
+        if ($report) {
+            $this->syncBoundTagForReport($report);
+        }
 
         return $report ? (string)$report['report_no'] : '';
     }