diff --git a/apps/web-antd/src/api/store-delivery/index.ts b/apps/web-antd/src/api/store-delivery/index.ts
index 060a635..e28c4f4 100644
--- a/apps/web-antd/src/api/store-delivery/index.ts
+++ b/apps/web-antd/src/api/store-delivery/index.ts
@@ -27,6 +27,7 @@ export interface PolygonZoneDto {
   id: string;
   minOrderAmount: number;
   name: string;
+  polygonGeoJson: string;
   priority: number;
 }
 
@@ -46,6 +47,10 @@ export interface DeliveryGeneralSettingsDto {
 export interface StoreDeliverySettingsDto {
   generalSettings: DeliveryGeneralSettingsDto;
   mode: DeliveryMode;
+  /** 半径配送中心点纬度 */
+  radiusCenterLatitude: null | number;
+  /** 半径配送中心点经度 */
+  radiusCenterLongitude: null | number;
   polygonZones: PolygonZoneDto[];
   radiusTiers: RadiusTierDto[];
   storeId: string;
@@ -60,6 +65,13 @@ export interface CopyStoreDeliverySettingsParams {
   targetStoreIds: string[];
 }
 
+/** 地址地理编码结果 */
+export interface StoreDeliveryGeocodeDto {
+  address: string;
+  latitude: null | number;
+  longitude: null | number;
+}
+
 /** 获取门店配送设置 */
 export async function getStoreDeliverySettingsApi(storeId: string) {
   return requestClient.get<StoreDeliverySettingsDto>('/store/delivery', {
@@ -80,3 +92,10 @@ export async function copyStoreDeliverySettingsApi(
 ) {
   return requestClient.post('/store/delivery/copy', data);
 }
+
+/** 地址地理编码（后端签名代理） */
+export async function geocodeStoreDeliveryAddressApi(address: string) {
+  return requestClient.get<StoreDeliveryGeocodeDto>('/store/delivery/geocode', {
+    params: { address },
+  });
+}
diff --git a/apps/web-antd/src/views/store/delivery/composables/useTencentGeocoder.ts b/apps/web-antd/src/views/store/delivery/composables/useTencentGeocoder.ts
new file mode 100644
index 0000000..a5aebb7
--- /dev/null
+++ b/apps/web-antd/src/views/store/delivery/composables/useTencentGeocoder.ts
@@ -0,0 +1,62 @@
+/**
+ * 文件职责：封装配送页地址地理编码能力。
+ * 1. 通过 TenantApi 后端代理调用腾讯地图 WebService，避免前端暴露 SK。
+ * 2. 内置结果缓存，减少重复请求与抖动。
+ */
+import type { LngLatTuple } from './delivery-page/geojson';
+
+import { geocodeStoreDeliveryAddressApi } from '#/api/store-delivery';
+
+const geocodeCache = new Map<string, LngLatTuple>();
+const geocodeFailedAddressSet = new Set<string>();
+
+function toTuple(
+  latitude: null | number,
+  longitude: null | number,
+): LngLatTuple | null {
+  const lng = Number(longitude);
+  const lat = Number(latitude);
+  if (!Number.isFinite(lng) || !Number.isFinite(lat)) return null;
+  if (lng < -180 || lng > 180 || lat < -90 || lat > 90) return null;
+  if (lng === 0 && lat === 0) return null;
+  return [lng, lat];
+}
+
+/**
+ * 将地址解析为经纬度中心点。
+ */
+export async function geocodeAddressToLngLat(rawAddress: string) {
+  const address = rawAddress?.trim() ?? '';
+  if (!address) return null;
+
+  if (geocodeCache.has(address)) {
+    const cached = geocodeCache.get(address);
+    if (cached) {
+      return cached;
+    }
+  }
+  if (geocodeFailedAddressSet.has(address)) {
+    return null;
+  }
+
+  try {
+    const response = await geocodeStoreDeliveryAddressApi(address);
+    const parsed = toTuple(
+      response?.latitude ?? null,
+      response?.longitude ?? null,
+    );
+    if (!parsed) {
+      geocodeFailedAddressSet.add(address);
+      return null;
+    }
+
+    geocodeCache.set(address, parsed);
+    return parsed;
+  } catch (error) {
+    geocodeFailedAddressSet.add(address);
+    if (import.meta.env.DEV) {
+      console.warn('地址地理编码失败', error);
+    }
+    return null;
+  }
+}