diff --git a/app/Http/Controllers/Business/Pages.php b/app/Http/Controllers/Business/Pages.php
index 7fcc8c3d..870714ce 100644
--- a/app/Http/Controllers/Business/Pages.php
+++ b/app/Http/Controllers/Business/Pages.php
@@ -460,6 +460,88 @@ class Pages extends Controller
         ]);
     }
 
+    /**
+     * 商品月加权平均单价导出：按当前月份与筛选条件导出 CSV，列序跟随页面显示列。
+     */
+    public function exportMonthlyWeightedAveragePrice(Request $request): StreamedResponse
+    {
+        $connection = (string) config('upstream_mirrors.connection', 'business_mirror');
+        $map = [
+            'month' => ['report_month', '月份'],
+            'barcode_warehouse' => ['barcode_warehouse', '条码+仓库'],
+            'warehouse_short_name' => ['warehouse_short_name', '仓库简称'],
+            'supplier' => ['supplier', '供应商'],
+            'product_code' => ['product_code', '商品编码'],
+            'product_name' => ['product_name', '商品名称'],
+            'opening_quantity' => ['opening_quantity', '原始数量'],
+            'opening_unit_price' => ['opening_unit_price', '原始价格'],
+            'opening_original_amount' => ['opening_original_amount', '原始期初金额'],
+            'opening_adjusted_price' => ['adjusted_unit_price', '更改价格'],
+            'opening_amount' => ['opening_amount', '期初金额'],
+            'purchase_quantity' => ['purchase_quantity', '采购数量'],
+            'purchase_unit_price' => ['purchase_unit_price', '采购单价'],
+            'purchase_amount' => ['purchase_amount', '入库金额'],
+            'weighted_average_unit_price' => ['weighted_average_unit_price', '加权平均单价'],
+            'pricing_status' => ['pricing_status', '定价状态'],
+        ];
+
+        $months = DB::connection($connection)->table('product_monthly_weighted_average_states')
+            ->where('status', 'computed')->orderByDesc('report_month')->pluck('report_month')
+            ->map(static fn ($month): string => substr((string) $month, 0, 10))->all();
+        $requested = substr(trim((string) $request->query('month', '')), 0, 10);
+        $month = in_array($requested, $months, true) ? $requested : ($months[0] ?? null);
+
+        $query = DB::connection($connection)->table('product_monthly_weighted_average_rows');
+        if ($month !== null) {
+            $query->where('report_month', $month);
+        }
+        $code = trim((string) $request->query('product_code', ''));
+        if ($code !== '') {
+            $query->where('product_code', $code);
+        }
+        $provider = trim((string) $request->query('warehouse_provider', ''));
+        if ($provider !== '') {
+            $query->where('warehouse_short_name', 'like', '%' . addcslashes($provider, '%_\\') . '%');
+        }
+        $category = trim((string) $request->query('category', ''));
+        if ($category !== '') {
+            $query->where('product_name', 'like', '%' . addcslashes($category, '%_\\') . '%');
+        }
+
+        $selected = array_values(array_intersect(
+            array_filter(explode(',', (string) $request->query('columns', ''))),
+            array_keys($map),
+        ));
+        if ($selected === []) {
+            $selected = array_keys($map);
+        }
+
+        $size = min(max((int) setting('default.list_limit', 25), 1), 50);
+        if ($request->query('scope') === 'page') {
+            $query->forPage(max((int) $request->query('page', 1), 1), $size);
+        }
+
+        $filename = '商品月加权平均单价_' . ($month ?? 'all') . '.csv';
+
+        return response()->streamDownload(function () use ($query, $selected, $map): void {
+            $out = fopen('php://output', 'w');
+            fwrite($out, "\xEF\xBB\xBF");
+            fputcsv($out, array_map(static fn (string $key): string => $map[$key][1], $selected));
+            $query->orderBy('warehouse_short_name')->orderBy('product_code')
+                ->chunk(1000, function ($rows) use ($out, $selected, $map): void {
+                    foreach ($rows as $row) {
+                        $line = [];
+                        foreach ($selected as $key) {
+                            $value = $row->{$map[$key][0]} ?? '';
+                            $line[] = is_string($value) ? $value : (string) $value;
+                        }
+                        fputcsv($out, $line);
+                    }
+                });
+            fclose($out);
+        }, $filename, ['Content-Type' => 'text/csv; charset=UTF-8']);
+    }
+
     protected function viewData(
         array $section,
         ?array $page = null,
diff --git a/resources/views/business/pages/partials/directory-table.blade.php b/resources/views/business/pages/partials/directory-table.blade.php
index e0857fc4..779845e7 100644
--- a/resources/views/business/pages/partials/directory-table.blade.php
+++ b/resources/views/business/pages/partials/directory-table.blade.php
@@ -1322,7 +1322,7 @@
                 <select id="directory-month-{{ $page['slug'] ?? 'page' }}" name="month" onchange="this.form.submit()">
                     @foreach ($directoryMonthOptions as $directoryMonthOption)
                         <option value="{{ $directoryMonthOption }}" @selected($directoryMonthOption === $directoryActiveMonth)>
-                            {{ \Illuminate\Support\Carbon::parse($directoryMonthOption)->format('Y年n月') }}
+                            {{ \Illuminate\Support\Carbon::parse($directoryMonthOption)->format('Y 年 m 月') }}
                         </option>
                     @endforeach
                 </select>
@@ -1342,7 +1342,7 @@
                     @endforeach
                 </div>
             </div>
-            @if (($page['slug'] ?? '') === 'inventory-report')
+            @if (in_array(($page['slug'] ?? ''), ['inventory-report', 'monthly-weighted-average-price'], true))
                 <select data-inventory-export-scope aria-label="导出范围">
                     <option value="all">全部筛选结果</option>
                     <option value="page">当前页（第 {{ $directoryCurrentPage }} 页）</option>
@@ -1351,7 +1351,9 @@
                     <option value="visible">当前显示列及顺序</option>
                     <option value="all">全部可导出字段</option>
                 </select>
-                <button type="button" data-inventory-export data-export-url="{{ route('business.product-inventory.inventory-report.export') }}">导出</button>
+                <button type="button" data-inventory-export data-export-url="{{ ($page['slug'] ?? '') === 'inventory-report'
+                    ? route('business.product-inventory.inventory-report.export')
+                    : route('business.product-inventory.monthly-weighted-average-price.export') }}">导出</button>
             @else
                 <div class="directory-export-group" aria-label="导出范围">
                     <button type="button" data-directory-export="visible">当前页·显示列</button>
diff --git a/routes/admin.php b/routes/admin.php
index 90441511..8cdd1afa 100644
--- a/routes/admin.php
+++ b/routes/admin.php
@@ -156,10 +156,18 @@ Route::get('workspace/product-inventory/online-daifa-price/export', 'Business\Pa
     ->middleware('business.page:product-inventory,online-daifa-price')
     ->name('business.product-inventory.online-daifa-price.export');
 
+Route::get('workspace/product-inventory/monthly-weighted-average-price/export', 'Business\Pages@exportMonthlyWeightedAveragePrice')
+    ->middleware('permission:read-business-pages')
+    ->name('business.product-inventory.monthly-weighted-average-price.export');
+
 Route::get('workspace/product-inventory/inventory-report/export', 'Business\Pages@exportInventoryReport')
     ->middleware('business.page:product-inventory,inventory-report')
     ->name('business.product-inventory.inventory-report.export');
 
+Route::get('workspace/product-inventory/monthly-weighted-average-price/export', 'Business\Pages@exportMonthlyWeightedAveragePrice')
+    ->middleware('business.page:product-inventory,monthly-weighted-average-price')
+    ->name('business.product-inventory.monthly-weighted-average-price.export');
+
 Route::prefix('workspace/product-inventory/inventory-report/warehouse-mappings')
     ->middleware('business.page:product-inventory,inventory-report')
     ->name('business.product-inventory.inventory-report.warehouse-mappings.')