diff --git a/app/Console/Commands/ComputeProductMonthlyWeightedAverage.php b/app/Console/Commands/ComputeProductMonthlyWeightedAverage.php
index c194624d..d0c1c29b 100644
--- a/app/Console/Commands/ComputeProductMonthlyWeightedAverage.php
+++ b/app/Console/Commands/ComputeProductMonthlyWeightedAverage.php
@@ -43,7 +43,8 @@ class ComputeProductMonthlyWeightedAverage extends Command
 
             $updates = [];
             foreach ($rows as $row) {
-                $code = trim((string) $row->product_code);
+                // 普通商品资料与进销存的商品编码大小写不一致，统一按大写匹配。
+                $code = mb_strtoupper(trim((string) $row->product_code));
                 $costPrice = is_array($cost) ? ($cost[$code] ?? null) : null;
                 $workPrice = is_array($work) ? ($work[$code] ?? null) : null;
                 $changePrice = is_array($change) ? ($change[$code] ?? null) : null;
@@ -95,7 +96,7 @@ class ComputeProductMonthlyWeightedAverage extends Command
         foreach (array_chunk($codes, 2000) as $chunk) {
             foreach (DB::connection($connection)->table('ops_jst_sku')
                 ->whereIn('sku_id', $chunk)->whereNotNull('cost_price')->get(['sku_id', 'cost_price']) as $row) {
-                $map[trim((string) $row->sku_id)] = (float) $row->cost_price;
+                $map[mb_strtoupper(trim((string) $row->sku_id))] = (float) $row->cost_price;
             }
         }
 
@@ -119,7 +120,7 @@ class ComputeProductMonthlyWeightedAverage extends Command
                 ->orderBy('effectTime')
                 ->get(['skuCode', 'purchasePrice', 'effectTime']);
             foreach ($rows as $row) {
-                $map[trim((string) $row->skuCode)] = [
+                $map[mb_strtoupper(trim((string) $row->skuCode))] = [
                     'price' => (float) $row->purchasePrice,
                     'effect' => $row->effectTime === null ? null : (string) $row->effectTime,
                 ];
@@ -142,7 +143,7 @@ class ComputeProductMonthlyWeightedAverage extends Command
                 ->orderBy('effectStartTime')
                 ->get(['skucode', 'afterPrice', 'effectStartTime']);
             foreach ($rows as $row) {
-                $map[trim((string) $row->skucode)] = [
+                $map[mb_strtoupper(trim((string) $row->skucode))] = [
                     'price' => (float) $row->afterPrice,
                     'time' => $row->effectStartTime === null ? null : (string) $row->effectStartTime,
                 ];