diff --git a/apps/frontend/src/types/admin/platform-config/kuaishou-cloud-fulfillment.ts b/apps/frontend/src/types/admin/platform-config/kuaishou-cloud-fulfillment.ts
index cf8a6224..c08140b0 100644
--- a/apps/frontend/src/types/admin/platform-config/kuaishou-cloud-fulfillment.ts
+++ b/apps/frontend/src/types/admin/platform-config/kuaishou-cloud-fulfillment.ts
@@ -22,6 +22,7 @@ export interface AdminKuaishouCloudFulfillmentItem {
   kuaishouConsumeShopId: string
   kuaishouConsumeShopName: string
   notes: string
+  cloudSourceKeyFallbacks?: string[]
 }
 
 export interface AdminKuaishouCloudFulfillmentConfig {
diff --git a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/AdminKuaishouCloudFulfillmentView.vue b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/AdminKuaishouCloudFulfillmentView.vue
index dcb942f9..8f1a00aa 100644
--- a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/AdminKuaishouCloudFulfillmentView.vue
+++ b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/AdminKuaishouCloudFulfillmentView.vue
@@ -45,6 +45,7 @@ onMounted(config.loadConfigs)
         <AdminKuaishouCloudRuleSection
           :enabled="config.enabled.value"
           :saving="config.saving.value"
+          :cloudtentacles-source-options="config.cloudtentaclesSourceOptions.value"
           :cloud-sku-catalog-loading="cloudSku.cloudSkuCatalogLoading.value"
           :validation-state="config.validationState.value"
           :items="config.items.value"
diff --git a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/components/AdminKuaishouCloudRuleCard.vue b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/components/AdminKuaishouCloudRuleCard.vue
index 980f3953..3ffa4af7 100644
--- a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/components/AdminKuaishouCloudRuleCard.vue
+++ b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/components/AdminKuaishouCloudRuleCard.vue
@@ -7,6 +7,7 @@ defineProps<{
   item: EditableItem
   index: number
   validationState: ValidationState
+  cloudtentaclesSourceOptions: { key: string; label: string }[]
   cloudSkuCatalogErrorMessage: string
   cloudSkuCatalogLoading: boolean
   isCollapsed: boolean
@@ -177,13 +178,37 @@ const emit = defineEmits<{
             />
           </label>
           <label class="field-block">
-            <span>cloudSourceKey</span>
-            <el-input
+            <span>cloud 主账号</span>
+            <el-select
               v-model="item.cloudSourceKey"
               class="text-input"
-              maxlength="60"
-              placeholder="默认 default"
-            />
+              placeholder="选择 cloud 账号"
+            >
+              <el-option
+                v-for="opt in cloudtentaclesSourceOptions"
+                :key="opt.key"
+                :label="opt.label || opt.key"
+                :value="opt.key"
+              />
+            </el-select>
+          </label>
+          <label class="field-block field-wide">
+            <span>备选 cloud 账号</span>
+            <el-select
+              v-model="item.cloudSourceKeyFallbacks"
+              class="text-input"
+              multiple
+              placeholder="主账号不可用时自动尝试备选"
+            >
+              <el-option
+                v-for="opt in cloudtentaclesSourceOptions.filter(
+                  (o) => o.key !== item.cloudSourceKey,
+                )"
+                :key="opt.key"
+                :label="opt.label || opt.key"
+                :value="opt.key"
+              />
+            </el-select>
           </label>
           <label class="field-block">
             <span>cloud SKU ID</span>
diff --git a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/components/AdminKuaishouCloudRuleSection.vue b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/components/AdminKuaishouCloudRuleSection.vue
index 71b3d0d2..355df8eb 100644
--- a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/components/AdminKuaishouCloudRuleSection.vue
+++ b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/components/AdminKuaishouCloudRuleSection.vue
@@ -8,6 +8,7 @@ import AdminKuaishouCloudRuleCard from './AdminKuaishouCloudRuleCard.vue'
 defineProps<{
   enabled: boolean
   saving: boolean
+  cloudtentaclesSourceOptions: { key: string; label: string }[]
   cloudSkuCatalogLoading: boolean
   validationState: ValidationState
   items: EditableItem[]
@@ -94,6 +95,7 @@ const emit = defineEmits<{
       :item="item"
       :index="index"
       :validation-state="validationState"
+      :cloudtentacles-source-options="cloudtentaclesSourceOptions"
       :cloud-sku-catalog-error-message="cloudSkuCatalogErrorMessage"
       :cloud-sku-catalog-loading="cloudSkuCatalogLoading"
       :is-collapsed="isCollapsed(item.localId)"
diff --git a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/composables/useKuaishouCloudConfig.ts b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/composables/useKuaishouCloudConfig.ts
index 8ca68729..1d69e1a4 100644
--- a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/composables/useKuaishouCloudConfig.ts
+++ b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/composables/useKuaishouCloudConfig.ts
@@ -4,6 +4,7 @@ import { showError, showSuccess } from '@/lib/feedback'
 import {
   fetchAdminKuaishouCloudFulfillmentConfig,
   fetchAdminKuaishouEticketSourceConfig,
+  fetchAdminCloudtentaclesSourceConfig,
   saveAdminKuaishouCloudFulfillmentConfig,
 } from '@/services/admin'
 import type {
@@ -26,6 +27,7 @@ export function useKuaishouCloudConfig() {
   const collapsedIds = ref<string[]>([])
   const ruleFilter = ref<RuleFilter>('all')
   const kuaishouConsumeShops = ref<AdminKuaishouEticketShopConfigItem[]>([])
+  const cloudtentaclesSourceOptions = ref<{ key: string; label: string }[]>([])
 
   // ── computed ──────────────────────────────────────────
 
@@ -84,6 +86,7 @@ export function useKuaishouCloudConfig() {
       kuaishouConsumeShopId: defaultShop?.shopId || '',
       kuaishouConsumeShopName: defaultShop?.kshopName || '',
       notes: '',
+      cloudSourceKeyFallbacks: [],
     }
   }
 
@@ -117,6 +120,9 @@ export function useKuaishouCloudConfig() {
       kuaishouConsumeShopId: matchedShop?.shopId || item.kuaishouConsumeShopId || '',
       kuaishouConsumeShopName: matchedShop?.kshopName || item.kuaishouConsumeShopName || '',
       notes: item.notes || '',
+      cloudSourceKeyFallbacks: Array.isArray(item.cloudSourceKeyFallbacks)
+        ? item.cloudSourceKeyFallbacks
+        : [],
     }
   }
 
@@ -147,8 +153,13 @@ export function useKuaishouCloudConfig() {
       autoReturnNumberAfterDispatch: item.autoReturnNumberAfterDispatch,
       autoConsumeAfterDispatch: item.autoConsumeAfterDispatch,
       kuaishouConsumeShopId: String(matchedShop?.shopId || item.kuaishouConsumeShopId).trim(),
-      kuaishouConsumeShopName: String(matchedShop?.kshopName || item.kuaishouConsumeShopName).trim(),
+      kuaishouConsumeShopName: String(
+        matchedShop?.kshopName || item.kuaishouConsumeShopName,
+      ).trim(),
       notes: item.notes.trim(),
+      cloudSourceKeyFallbacks: Array.isArray(item.cloudSourceKeyFallbacks)
+        ? item.cloudSourceKeyFallbacks.filter(Boolean)
+        : [],
     }
   }
 
@@ -165,36 +176,36 @@ export function useKuaishouCloudConfig() {
   function hasMeaningfulContent(item: EditableItem) {
     return Boolean(
       item.internalSkuCode.trim() ||
-      item.internalSkuName.trim() ||
-      item.externalSkuCode.trim() ||
-      item.externalItemId.trim() ||
-      item.externalSkuName.trim() ||
-      item.resolvedSkuName.trim() ||
-      item.cloudSourceKey.trim() !== 'default' ||
-      Number(item.cloudSkuId || 0) > 0 ||
-      item.cloudSkuName.trim() ||
-      item.vnKey.trim() ||
-      item.shopId.trim() ||
-      item.notes.trim() ||
-      item.provider.trim() !== '91kaquan' ||
-      item.platform.trim() !== 'kuaishou' ||
-      item.priority !== 100 ||
-      item.autoBuyEnabled !== true ||
-      item.minAssetReserve !== 0 ||
-      item.autoReturnNumberAfterDispatch ||
-      item.autoConsumeAfterDispatch ||
-      item.kuaishouConsumeShopId.trim() ||
-      item.kuaishouConsumeShopName.trim() ||
-      item.enabled !== true,
+        item.internalSkuName.trim() ||
+        item.externalSkuCode.trim() ||
+        item.externalItemId.trim() ||
+        item.externalSkuName.trim() ||
+        item.resolvedSkuName.trim() ||
+        item.cloudSourceKey.trim() !== 'default' ||
+        Number(item.cloudSkuId || 0) > 0 ||
+        item.cloudSkuName.trim() ||
+        item.vnKey.trim() ||
+        item.shopId.trim() ||
+        item.notes.trim() ||
+        item.provider.trim() !== '91kaquan' ||
+        item.platform.trim() !== 'kuaishou' ||
+        item.priority !== 100 ||
+        item.autoBuyEnabled !== true ||
+        item.minAssetReserve !== 0 ||
+        item.autoReturnNumberAfterDispatch ||
+        item.autoConsumeAfterDispatch ||
+        item.kuaishouConsumeShopId.trim() ||
+        item.kuaishouConsumeShopName.trim() ||
+        item.enabled !== true,
     )
   }
 
   function isItemComplete(item: EditableItem) {
     return Boolean(
       item.internalSkuCode.trim() &&
-      Number(item.cloudSkuId || 0) > 0 &&
-      (!item.autoConsumeAfterDispatch || Boolean(item.kuaishouConsumeShopId.trim())) &&
-      hasExternalMatch(item),
+        Number(item.cloudSkuId || 0) > 0 &&
+        (!item.autoConsumeAfterDispatch || Boolean(item.kuaishouConsumeShopId.trim())) &&
+        hasExternalMatch(item),
     )
   }
 
@@ -387,13 +398,21 @@ export function useKuaishouCloudConfig() {
     errorMessage.value = ''
 
     try {
-      const [response, eticketResponse] = await Promise.all([
+      const [response, eticketResponse, cloudtentaclesSourceResponse] = await Promise.all([
         fetchAdminKuaishouCloudFulfillmentConfig(),
         fetchAdminKuaishouEticketSourceConfig(),
+        fetchAdminCloudtentaclesSourceConfig(),
       ])
       kuaishouConsumeShops.value = Array.isArray(eticketResponse.data.source.shops)
         ? eticketResponse.data.source.shops
         : []
+      const sources = Array.isArray(cloudtentaclesSourceResponse.data.sources)
+        ? cloudtentaclesSourceResponse.data.sources
+        : []
+      cloudtentaclesSourceOptions.value = sources.map((s) => ({
+        key: s.key,
+        label: s.label || s.key,
+      }))
       filePath.value = response.data.filePath
       enabled.value = response.data.source.enabled !== false
       items.value = (response.data.source.items || []).map(mapEditableItem)
@@ -523,5 +542,7 @@ export function useKuaishouCloudConfig() {
     removeItem,
     saveConfigs,
     focusValidationTarget,
+    // cloudtentacles sources
+    cloudtentaclesSourceOptions,
   }
 }
diff --git a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/composables/useKuaishouCloudSku.ts b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/composables/useKuaishouCloudSku.ts
index c79342f9..364f36c7 100644
--- a/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/composables/useKuaishouCloudSku.ts
+++ b/apps/frontend/src/views/admin/fulfillment/kuaishou-cloud/composables/useKuaishouCloudSku.ts
@@ -7,29 +7,34 @@ import type { AdminCloudtentaclesSkuItem } from '@/types/admin'
 import type { EditableItem } from './types'
 
 export function useKuaishouCloudSku() {
-  const cloudSkuCatalogLoading = ref(false)
+  const cloudSkuCatalogLoadingBySourceKey = ref<Record<string, boolean>>({})
   const cloudSkuCatalogErrorMessage = ref('')
-  const cloudSkuCatalog = ref<AdminCloudtentaclesSkuItem[]>([])
+  const cloudSkuCatalogBySourceKey = ref<Record<string, AdminCloudtentaclesSkuItem[]>>({})
 
-  async function ensureCloudSkuCatalogLoaded(force = false) {
-    if (!force && cloudSkuCatalog.value.length > 0) {
-      return cloudSkuCatalog.value
+  function getSourceKey(item: EditableItem) {
+    return String(item.cloudSourceKey || 'default').trim()
+  }
+
+  async function ensureCloudSkuCatalogLoaded(item: EditableItem, force = false) {
+    const sourceKey = getSourceKey(item)
+    if (!force && (cloudSkuCatalogBySourceKey.value[sourceKey]?.length ?? 0) > 0) {
+      return cloudSkuCatalogBySourceKey.value[sourceKey]
     }
 
-    cloudSkuCatalogLoading.value = true
+    cloudSkuCatalogLoadingBySourceKey.value[sourceKey] = true
     cloudSkuCatalogErrorMessage.value = ''
 
     try {
-      const response = await fetchAdminCloudtentaclesSkuList({})
-      cloudSkuCatalog.value = Array.isArray(response.data.items) ? response.data.items : []
-      return cloudSkuCatalog.value
+      const response = await fetchAdminCloudtentaclesSkuList({ sourceKey })
+      cloudSkuCatalogBySourceKey.value[sourceKey] = Array.isArray(response.data.items) ? response.data.items : []
+      return cloudSkuCatalogBySourceKey.value[sourceKey]
     } catch (error) {
-      cloudSkuCatalog.value = []
+      cloudSkuCatalogBySourceKey.value[sourceKey] = []
       cloudSkuCatalogErrorMessage.value =
         error instanceof Error ? error.message : 'cloud SKU 列表查询失败'
       throw error
     } finally {
-      cloudSkuCatalogLoading.value = false
+      cloudSkuCatalogLoadingBySourceKey.value[sourceKey] = false
     }
   }
 
@@ -76,8 +81,10 @@ export function useKuaishouCloudSku() {
   }
 
   function getCloudSkuOptions(item: EditableItem) {
+    const sourceKey = getSourceKey(item)
+    const catalog = cloudSkuCatalogBySourceKey.value[sourceKey] || []
     const keyword = getCloudSkuKeyword(item)
-    const scored = cloudSkuCatalog.value
+    const scored = catalog
       .map((sku) => ({ sku, score: scoreCloudSkuMatch(sku, keyword) }))
       .filter((entry) => entry.score > 0 || entry.sku.id === Number(item.cloudSkuId || 0))
       .sort((left, right) => {
@@ -93,7 +100,7 @@ export function useKuaishouCloudSku() {
       return scored.slice(0, 80)
     }
 
-    return cloudSkuCatalog.value.slice(0, 80)
+    return catalog.slice(0, 80)
   }
 
   function formatCloudSkuOptionLabel(item: AdminCloudtentaclesSkuItem) {
@@ -111,7 +118,9 @@ export function useKuaishouCloudSku() {
       return
     }
 
-    const matched = cloudSkuCatalog.value.find((sku) => sku.id === item.cloudSkuId)
+    const sourceKey = getSourceKey(item)
+    const catalog = cloudSkuCatalogBySourceKey.value[sourceKey] || []
+    const matched = catalog.find((sku) => sku.id === item.cloudSkuId)
     item.cloudSkuName = matched?.name || item.cloudSkuName || ''
   }
 
@@ -121,7 +130,7 @@ export function useKuaishouCloudSku() {
     }
 
     try {
-      await ensureCloudSkuCatalogLoaded()
+      await ensureCloudSkuCatalogLoaded(item)
       if (item.cloudSkuId && !item.cloudSkuName) {
         handleCloudSkuSelected(item, item.cloudSkuId)
       }
@@ -130,23 +139,44 @@ export function useKuaishouCloudSku() {
     }
   }
 
-  async function refreshCloudSkuCatalog() {
+  async function refreshCloudSkuCatalog(item?: EditableItem) {
     try {
-      await ensureCloudSkuCatalogLoaded(true)
-      showSuccess(`cloud SKU 列表已刷新，共 ${cloudSkuCatalog.value.length} 条`)
+      if (item) {
+        await ensureCloudSkuCatalogLoaded(item, true)
+        const sourceKey = getSourceKey(item)
+        const count = cloudSkuCatalogBySourceKey.value[sourceKey]?.length ?? 0
+        showSuccess(`cloud SKU 列表（${sourceKey}）已刷新，共 ${count} 条`)
+      } else {
+        // No item provided — refresh all loaded caches
+        const keys = Object.keys(cloudSkuCatalogBySourceKey.value)
+        for (const key of keys) {
+          await ensureCloudSkuCatalogLoaded({ cloudSourceKey: key, localId: '' } as EditableItem, true)
+        }
+        const total = Object.values(cloudSkuCatalogBySourceKey.value).reduce((sum, list) => sum + list.length, 0)
+        showSuccess(`cloud SKU 列表已全部刷新，共 ${total} 条`)
+      }
     } catch (error) {
       showError(error instanceof Error ? error.message : 'cloud SKU 列表查询失败')
     }
   }
 
+  const cloudSkuCatalogLoading = ref(false)
+  // Maintain backward-compat: derive a combined loading state
+  // The template uses cloudSkuCatalogLoading for the refresh button spinner
+  function syncCloudSkuCatalogLoading() {
+    cloudSkuCatalogLoading.value = Object.values(cloudSkuCatalogLoadingBySourceKey.value).some(Boolean)
+  }
+
   return {
     cloudSkuCatalogLoading,
+    cloudSkuCatalogLoadingBySourceKey,
     cloudSkuCatalogErrorMessage,
-    cloudSkuCatalog,
+    cloudSkuCatalogBySourceKey,
     getCloudSkuOptions,
     formatCloudSkuOptionLabel,
     handleCloudSkuSelected,
     handleCloudSkuDropdownVisible,
     refreshCloudSkuCatalog,
+    syncCloudSkuCatalogLoading,
   }
 }