diff --git a/backend/src/services/modularStockMonitorService.js b/backend/src/services/modularStockMonitorService.js
index 4e2bc3e..5b3d0da 100644
--- a/backend/src/services/modularStockMonitorService.js
+++ b/backend/src/services/modularStockMonitorService.js
@@ -41,7 +41,8 @@ const WAREHOUSE_WMS_CO_ID = 15718196;
 const DEFAULT_PAGE_SIZE = 50;
 const MAX_PAGE_SIZE = 200;
 const DEFAULT_SAFETY_DAYS = 15;
-// 预警阈值：库存可用天数 <= 7 天即预警
+// 预警阈值：库存可用天数 <= 7 天即预警（缺货 = 实时库存 <= 0）
+// ⚠️ 2026-09-17 业务确认：未配置MKH 的配件不进任何预警（见 buildWarningOrderSql）
 const LOW_STOCK_DAYS_THRESHOLD = 7;
 
 const WARNING_LEVEL = Object.freeze({
@@ -93,6 +94,22 @@ const buildConfiguredExistsSql = () => (
    )`
 );
 
+/**
+ * 统一的「预警等级(数值)」表达式（2026-09-17 业务确认：未配置MKH 不进任何预警）。
+ *   0 = 缺货 / 1 = 预警 / 2 = 正常
+ *   未配置MKH（cfg.configured = 0）一律判为「正常」，不报缺货也不报预警。
+ *   注意 cfg / inv / m 三个别名都来自 buildBaseSql 的 OUTER APPLY，WHERE / SELECT 中均可引用。
+ *   列表映射、汇总计数、筛选、排序四处共用此表达式，避免口径不一致。
+ */
+const buildWarningOrderSql = () => (
+  `CASE
+     WHEN cfg.configured = 0 THEN 2
+     WHEN COALESCE(inv.qty, m.jsStock, 0) <= 0 THEN 0
+     WHEN m.jsUseDays IS NOT NULL AND m.jsUseDays <= ${LOW_STOCK_DAYS_THRESHOLD} THEN 1
+     ELSE 2
+   END`
+);
+
 const buildBaseSql = () => `
 FROM dbo.jst_sku s
 OUTER APPLY (
@@ -139,16 +156,6 @@ const toText = (value) => {
   return text === '' ? null : text;
 };
 
-const normalizeWarningLevel = (realtimeStock, stockDays) => {
-  const stock = Number(realtimeStock || 0);
-  if (stock <= 0) return WARNING_LEVEL.OUT_OF_STOCK;
-
-  const days = toNumber(stockDays);
-  if (days !== null && days <= LOW_STOCK_DAYS_THRESHOLD) return WARNING_LEVEL.WARNING;
-
-  return WARNING_LEVEL.NORMAL;
-};
-
 const WARNING_ORDER = {
   [WARNING_LEVEL.OUT_OF_STOCK]: 0,
   [WARNING_LEVEL.WARNING]: 1,
@@ -209,20 +216,14 @@ const buildFilters = (query = {}, monitorDate = null) => {
   const warningLevel = toText(query.warningLevel);
   if (warningLevel && Object.prototype.hasOwnProperty.call(WARNING_ORDER, warningLevel)) {
     params.warningOrder = WARNING_ORDER[warningLevel];
-    conditions.push(`
-      CASE
-        WHEN COALESCE(inv.qty, m.jsStock, 0) <= 0 THEN 0
-        WHEN m.jsUseDays IS NOT NULL AND m.jsUseDays <= ${LOW_STOCK_DAYS_THRESHOLD} THEN 1
-        ELSE 2
-      END = @warningOrder`);
+    // 用统一表达式，未配置MKH 不参与预警判定（筛「缺货 / 预警」时不会漏出未配置MKH）
+    conditions.push(`${buildWarningOrderSql()} = @warningOrder`);
   }
 
   const onlyWarning = String(query.onlyWarning || '').toLowerCase();
   if (['1', 'true', 'yes'].includes(onlyWarning)) {
-    conditions.push(`(
-      COALESCE(inv.qty, m.jsStock, 0) <= 0
-      OR (m.jsUseDays IS NOT NULL AND m.jsUseDays <= ${LOW_STOCK_DAYS_THRESHOLD})
-    )`);
+    // 仅看缺货 / 预警：统一表达式 <= 1（未配置MKH 一律为 2，自动排除）
+    conditions.push(`${buildWarningOrderSql()} <= 1`);
   }
 
   return { conditions, params };
@@ -283,7 +284,14 @@ const mapRow = (row = {}) => {
   const realtimeStock = Number(row.realtimeStock || 0);
   const stockDays = toNumber(row.stockDays);
   const safetyDays = toNumber(row.safetyDays) ?? DEFAULT_SAFETY_DAYS;
-  const warningLevel = normalizeWarningLevel(realtimeStock, stockDays);
+  // 预警等级以 SQL 端 buildWarningOrderSql() 的判定为准（已含「未配置MKH 不进预警」规则），
+  // 前端显示与排序口径保持一致，避免前后端各算一份。
+  const warningOrder = Number(row.warningOrder ?? WARNING_ORDER[WARNING_LEVEL.NORMAL]);
+  const warningLevel = warningOrder === WARNING_ORDER[WARNING_LEVEL.OUT_OF_STOCK]
+    ? WARNING_LEVEL.OUT_OF_STOCK
+    : warningOrder === WARNING_ORDER[WARNING_LEVEL.WARNING]
+      ? WARNING_LEVEL.WARNING
+      : WARNING_LEVEL.NORMAL;
 
   return {
     skuId: toText(row.skuId),
@@ -292,7 +300,7 @@ const mapRow = (row = {}) => {
     // 图片优先取产品资料系统数据库（业务库 pic/pic_big 目标仓全为空）
     imageUrl: toText(row.productImageUrl) || toText(row.imageUrl),
     warningLevel,
-    warningOrder: WARNING_ORDER[warningLevel],
+    warningOrder,
     mkhStatus: toText(row.mkhStatus) || MKH_STATUS.UNCONFIGURED,
     // 业务库无出入库流水表：入库取采购到货（监控日），出库取 pm_stockMonitor 近一日发货量
     inQtyToday: toNumber(row.inQtyToday) ?? 0,
@@ -326,11 +334,7 @@ const buildProjection = () => `
     cost.pictureSkucode
   )                                                                               AS imageUrl,
   CASE WHEN cfg.configured = 1 THEN N'已配置MKH' ELSE N'未配置MKH' END               AS mkhStatus,
-  CASE
-    WHEN COALESCE(inv.qty, m.jsStock, 0) <= 0 THEN 0
-    WHEN m.jsUseDays IS NOT NULL AND m.jsUseDays <= ${LOW_STOCK_DAYS_THRESHOLD} THEN 1
-    ELSE 2
-  END                                                                             AS warningOrder,
+  ${buildWarningOrderSql()}                                                      AS warningOrder,
   m.date                                                                          AS monitorDate`;
 
 async function getModularStockList(query = {}) {
@@ -395,9 +399,9 @@ async function buildSummary(whereSql, params) {
   const rows = await cloudDatabase.query(
     `SELECT
        COUNT_BIG(*)                                                                   AS skuCount,
-       SUM(CASE WHEN COALESCE(inv.qty, m.jsStock, 0) <= 0 THEN 1 ELSE 0 END)                       AS outOfStockCount,
+       SUM(CASE WHEN ${buildWarningOrderSql()} = 0 THEN 1 ELSE 0 END)                          AS outOfStockCount,
        CAST(ISNULL(SUM(COALESCE(inv.qty, m.jsStock, 0)), 0) AS BIGINT)                             AS totalStock,
-       SUM(CASE WHEN m.jsUseDays IS NOT NULL AND m.jsUseDays <= ${LOW_STOCK_DAYS_THRESHOLD} THEN 1 ELSE 0 END) AS lowStockDaysCount,
+       SUM(CASE WHEN ${buildWarningOrderSql()} = 1 THEN 1 ELSE 0 END)                          AS lowStockDaysCount,
        SUM(CASE WHEN cfg.configured = 1 THEN 1 ELSE 0 END)                                       AS configuredCount,
        MAX(m.date)                                                                    AS monitorDate
      ${whereSql}`,