diff --git a/apps/shop-admin/app.vue b/apps/shop-admin/app.vue
index fe61e2c..282b631 100644
--- a/apps/shop-admin/app.vue
+++ b/apps/shop-admin/app.vue
@@ -26,6 +26,7 @@ watchEffect(() => {
       <NuxtLink to="/shipments">{{ $t("nav.shipments") }}</NuxtLink>
       <NuxtLink to="/invoices">{{ $t("nav.invoices") }}</NuxtLink>
       <NuxtLink to="/coupons">{{ $t("nav.coupons") }}</NuxtLink>
+      <NuxtLink to="/flash-sales">{{ $t("nav.flashSales") }}</NuxtLink>
     </aside>
     <main>
       <div class="main-head">
diff --git a/apps/shop-admin/locales-extra.ts b/apps/shop-admin/locales-extra.ts
index d3f6b50..de47042 100644
--- a/apps/shop-admin/locales-extra.ts
+++ b/apps/shop-admin/locales-extra.ts
@@ -6,6 +6,7 @@ export const enExtra = {
   },
   nav: {
     coupons: "Coupons",
+    flashSales: "Flash sales",
   },
   shop: {
     dashboardTitle: "Merchant dashboard",
@@ -85,6 +86,37 @@ export const enExtra = {
     couponWindowInvalid: "End must not precede start.",
     enabledOn: "Enabled",
     enabledOff: "Disabled",
+    flashSaleList: "Flash sales",
+    newFlashSale: "New session",
+    editFlashSale: "Edit session",
+    flashLabelEn: "Label (English)",
+    flashLabelZh: "Label (中文)",
+    flashStartsAt: "Starts at",
+    flashEndsAt: "Ends at",
+    flashEnabled: "Enabled",
+    createFlashSale: "Create session",
+    updateFlashSale: "Update session",
+    flashSaleSaved: "Session saved.",
+    flashItemSaved: "Activity item saved.",
+    flashItems: "Activity items",
+    noFlashItems: "No activity items yet.",
+    newFlashItem: "Add activity item",
+    editFlashItem: "Edit activity item",
+    flashSku: "SKU",
+    flashSelectSku: "Select a SKU",
+    flashSalePrice: "Sale price (minor units)",
+    flashReservedStock: "Reserved stock",
+    flashPerCustomerLimit: "Per-customer limit",
+    saveFlashItem: "Save item",
+    flashOriginalPrice: "Catalog price",
+    flashSold: "Sold",
+    flashRemaining: "Remaining",
+    flashLabelRequired: "Both language labels are required.",
+    flashSkuRequired: "Choose a SKU.",
+    flashPriceInvalid: "Sale price must be a positive integer.",
+    flashStockInvalid: "Reserved stock cannot be negative.",
+    flashLimitInvalid: "Per-customer limit must be a positive integer.",
+    flashWindowInvalid: "End must not precede start.",
   },
 } as Record<string, unknown>;
 
@@ -94,6 +126,7 @@ export const zhExtra = {
   },
   nav: {
     coupons: "优惠券",
+    flashSales: "秒杀",
   },
   shop: {
     dashboardTitle: "商家仪表盘",
@@ -173,5 +206,36 @@ export const zhExtra = {
     couponWindowInvalid: "结束时间不能早于开始时间。",
     enabledOn: "已启用",
     enabledOff: "已停用",
+    flashSaleList: "秒杀活动",
+    newFlashSale: "新建场次",
+    editFlashSale: "编辑场次",
+    flashLabelEn: "标题（英文）",
+    flashLabelZh: "标题（中文）",
+    flashStartsAt: "开始时间",
+    flashEndsAt: "结束时间",
+    flashEnabled: "启用",
+    createFlashSale: "创建场次",
+    updateFlashSale: "更新场次",
+    flashSaleSaved: "场次已保存。",
+    flashItemSaved: "活动商品已保存。",
+    flashItems: "活动商品",
+    noFlashItems: "暂无活动商品。",
+    newFlashItem: "添加活动商品",
+    editFlashItem: "编辑活动商品",
+    flashSku: "SKU",
+    flashSelectSku: "请选择 SKU",
+    flashSalePrice: "秒杀价（最小单位）",
+    flashReservedStock: "活动库存",
+    flashPerCustomerLimit: "每人限购",
+    saveFlashItem: "保存商品",
+    flashOriginalPrice: "原价",
+    flashSold: "已售",
+    flashRemaining: "剩余",
+    flashLabelRequired: "中英文标题均为必填项。",
+    flashSkuRequired: "请选择 SKU。",
+    flashPriceInvalid: "秒杀价必须为正整数。",
+    flashStockInvalid: "活动库存不能为负数。",
+    flashLimitInvalid: "每人限购必须为正整数。",
+    flashWindowInvalid: "结束时间不能早于开始时间。",
   },
 } as Record<string, unknown>;
diff --git a/apps/shop-admin/pages/flash-sales.vue b/apps/shop-admin/pages/flash-sales.vue
new file mode 100644
index 0000000..524191a
--- /dev/null
+++ b/apps/shop-admin/pages/flash-sales.vue
@@ -0,0 +1,442 @@
+<script setup lang="ts">
+import type {
+  Currency,
+  ShopFlashSaleItem,
+  ShopFlashSaleSession,
+} from "@vmall/shared";
+
+definePageMeta({ middleware: "auth" });
+
+const { $api } = useNuxtApp();
+const { locale, t: translate } = useI18n();
+const { load: loadMoney, fmt } = useMoney();
+
+const sessions = ref<ShopFlashSaleSession[]>([]);
+const currencies = ref<Currency[]>([]);
+const skuOptions = ref<{ id: string; label: string }[]>([]);
+const loading = ref(true);
+const saving = ref(false);
+const actionId = ref("");
+const error = ref("");
+const message = ref("");
+const editingSessionId = ref("");
+const editingItemId = ref("");
+const itemSessionId = ref("");
+
+const sessionForm = reactive({
+  labelEn: "",
+  labelZh: "",
+  startsAt: "",
+  endsAt: "",
+  enabled: true,
+});
+
+const itemForm = reactive({
+  skuId: "",
+  salePriceMinor: 0,
+  currency: "USD",
+  reservedStock: 0,
+  perCustomerLimit: 1,
+});
+
+function toLocalInput(iso: string): string {
+  const d = new Date(iso);
+  const pad = (n: number) => String(n).padStart(2, "0");
+  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}T${pad(d.getHours())}:${pad(d.getMinutes())}`;
+}
+
+function resetSessionForm(): void {
+  const now = new Date();
+  const later = new Date(now.getTime() + 7 * 24 * 3600 * 1000);
+  editingSessionId.value = "";
+  sessionForm.labelEn = "";
+  sessionForm.labelZh = "";
+  sessionForm.startsAt = toLocalInput(now.toISOString());
+  sessionForm.endsAt = toLocalInput(later.toISOString());
+  sessionForm.enabled = true;
+}
+
+function resetItemForm(): void {
+  editingItemId.value = "";
+  itemForm.skuId = skuOptions.value[0]?.id ?? "";
+  itemForm.salePriceMinor = 0;
+  itemForm.currency =
+    currencies.value.find((c) => c.is_base)?.code ?? currencies.value[0]?.code ?? "USD";
+  itemForm.reservedStock = 0;
+  itemForm.perCustomerLimit = 1;
+}
+
+async function load(): Promise<void> {
+  loading.value = true;
+  error.value = "";
+  try {
+    sessions.value = await $api.shop.listFlashSales();
+  } catch (err: unknown) {
+    error.value = err instanceof Error ? err.message : translate("common.error");
+  } finally {
+    loading.value = false;
+  }
+}
+
+async function loadCatalog(): Promise<void> {
+  try {
+    const page = await $api.shop.listMyProducts({ per_page: 100 });
+    skuOptions.value = page.items.flatMap((product) =>
+      (product.skus ?? []).map((sku) => ({
+        id: sku.id,
+        label: `${product.name[locale.value] ?? product.name.en ?? product.slug} · ${sku.sku_code}`,
+      })),
+    );
+  } catch {
+    skuOptions.value = [];
+  }
+}
+
+async function loadCurrencies(): Promise<void> {
+  try {
+    currencies.value = (await $api.listCurrencies()).filter((c) => c.enabled);
+  } catch {
+    currencies.value = [];
+  }
+}
+
+async function saveSession(): Promise<void> {
+  error.value = "";
+  message.value = "";
+  if (!sessionForm.labelEn.trim() || !sessionForm.labelZh.trim()) {
+    error.value = translate("shop.flashLabelRequired");
+    return;
+  }
+  if (new Date(sessionForm.endsAt) < new Date(sessionForm.startsAt)) {
+    error.value = translate("shop.flashWindowInvalid");
+    return;
+  }
+  const body = {
+    label: { en: sessionForm.labelEn.trim(), zh: sessionForm.labelZh.trim() },
+    starts_at: new Date(sessionForm.startsAt).toISOString(),
+    ends_at: new Date(sessionForm.endsAt).toISOString(),
+    enabled: sessionForm.enabled,
+  };
+  saving.value = true;
+  try {
+    if (editingSessionId.value) await $api.shop.updateFlashSale(editingSessionId.value, body);
+    else await $api.shop.createFlashSale(body);
+    message.value = translate("shop.flashSaleSaved");
+    resetSessionForm();
+    await load();
+  } catch (err: unknown) {
+    error.value = err instanceof Error ? err.message : translate("common.error");
+  } finally {
+    saving.value = false;
+  }
+}
+
+function editSession(session: ShopFlashSaleSession): void {
+  editingSessionId.value = session.id;
+  sessionForm.labelEn = session.label.en ?? "";
+  sessionForm.labelZh = session.label.zh ?? "";
+  sessionForm.startsAt = toLocalInput(session.starts_at);
+  sessionForm.endsAt = toLocalInput(session.ends_at);
+  sessionForm.enabled = session.enabled;
+}
+
+async function removeSession(session: ShopFlashSaleSession): Promise<void> {
+  actionId.value = session.id;
+  error.value = "";
+  try {
+    await $api.shop.deleteFlashSale(session.id);
+    await load();
+  } catch (err: unknown) {
+    error.value = err instanceof Error ? err.message : translate("common.error");
+  } finally {
+    actionId.value = "";
+  }
+}
+
+function startAddItem(session: ShopFlashSaleSession): void {
+  itemSessionId.value = session.id;
+  resetItemForm();
+}
+
+function editItem(session: ShopFlashSaleSession, item: ShopFlashSaleItem): void {
+  itemSessionId.value = session.id;
+  editingItemId.value = item.id;
+  itemForm.skuId = item.sku_id;
+  itemForm.salePriceMinor = item.sale_price_minor;
+  itemForm.currency = item.currency;
+  itemForm.reservedStock = item.reserved_stock;
+  itemForm.perCustomerLimit = item.per_customer_limit;
+}
+
+async function saveItem(session: ShopFlashSaleSession): Promise<void> {
+  error.value = "";
+  message.value = "";
+  if (!itemForm.skuId) {
+    error.value = translate("shop.flashSkuRequired");
+    return;
+  }
+  if (!(Number(itemForm.salePriceMinor) > 0)) {
+    error.value = translate("shop.flashPriceInvalid");
+    return;
+  }
+  if (Number(itemForm.reservedStock) < 0) {
+    error.value = translate("shop.flashStockInvalid");
+    return;
+  }
+  if (!(Number(itemForm.perCustomerLimit) > 0)) {
+    error.value = translate("shop.flashLimitInvalid");
+    return;
+  }
+  const body = {
+    sku_id: itemForm.skuId,
+    sale_price_minor: Number(itemForm.salePriceMinor),
+    currency: itemForm.currency,
+    reserved_stock: Number(itemForm.reservedStock),
+    per_customer_limit: Number(itemForm.perCustomerLimit),
+  };
+  saving.value = true;
+  try {
+    if (editingItemId.value) await $api.shop.updateFlashSaleItem(editingItemId.value, body);
+    else await $api.shop.addFlashSaleItem(session.id, body);
+    message.value = translate("shop.flashItemSaved");
+    resetItemForm();
+    itemSessionId.value = "";
+    await load();
+  } catch (err: unknown) {
+    error.value = err instanceof Error ? err.message : translate("common.error");
+  } finally {
+    saving.value = false;
+  }
+}
+
+async function removeItem(item: ShopFlashSaleItem): Promise<void> {
+  actionId.value = item.id;
+  error.value = "";
+  try {
+    await $api.shop.deleteFlashSaleItem(item.id);
+    await load();
+  } catch (err: unknown) {
+    error.value = err instanceof Error ? err.message : translate("common.error");
+  } finally {
+    actionId.value = "";
+  }
+}
+
+onMounted(async () => {
+  loadMoney();
+  await Promise.all([loadCurrencies(), loadCatalog()]);
+  resetSessionForm();
+  resetItemForm();
+  await load();
+});
+</script>
+
+<template>
+  <div class="page">
+    <h1 class="page-title">{{ $t("shop.flashSaleList") }}</h1>
+    <div v-if="error" class="error-text" role="alert">{{ error }}</div>
+    <div v-if="message" class="muted" role="status">{{ message }}</div>
+
+    <section class="card create-card">
+      <h2>{{ editingSessionId ? $t("shop.editFlashSale") : $t("shop.newFlashSale") }}</h2>
+      <div class="form-grid">
+        <label>
+          <span>{{ $t("shop.flashLabelEn") }}</span>
+          <input v-model="sessionForm.labelEn" class="input" type="text" />
+        </label>
+        <label>
+          <span>{{ $t("shop.flashLabelZh") }}</span>
+          <input v-model="sessionForm.labelZh" class="input" type="text" />
+        </label>
+        <label>
+          <span>{{ $t("shop.flashStartsAt") }}</span>
+          <input v-model="sessionForm.startsAt" class="input" type="datetime-local" />
+        </label>
+        <label>
+          <span>{{ $t("shop.flashEndsAt") }}</span>
+          <input v-model="sessionForm.endsAt" class="input" type="datetime-local" />
+        </label>
+        <label class="checkbox">
+          <input v-model="sessionForm.enabled" type="checkbox" />
+          <span>{{ $t("shop.flashEnabled") }}</span>
+        </label>
+      </div>
+      <div class="form-actions">
+        <button class="btn primary" :disabled="saving" @click="saveSession">
+          {{ editingSessionId ? $t("shop.updateFlashSale") : $t("shop.createFlashSale") }}
+        </button>
+        <button v-if="editingSessionId" class="btn" type="button" @click="resetSessionForm">
+          {{ $t("common.cancel") }}
+        </button>
+      </div>
+    </section>
+
+    <p v-if="loading" class="muted">{{ $t("common.loading") }}</p>
+    <div v-else-if="!sessions.length" class="card muted">{{ $t("common.empty") }}</div>
+    <template v-else>
+      <section v-for="session in sessions" :key="session.id" class="card session-card">
+        <header class="session-head">
+          <div>
+            <strong>{{ session.label[locale] ?? session.label.en }}</strong>
+            <span class="muted">
+              {{ session.starts_at.slice(0, 10) }} → {{ session.ends_at.slice(0, 10) }}
+            </span>
+            <span class="badge" :class="session.enabled ? 'green' : 'red'">
+              {{ session.enabled ? $t("shop.enabledOn") : $t("shop.enabledOff") }}
+            </span>
+          </div>
+          <div class="action-row">
+            <button class="btn sm" :disabled="actionId === session.id" @click="editSession(session)">
+              {{ $t("shop.edit") }}
+            </button>
+            <button class="btn sm" :disabled="actionId === session.id" @click="startAddItem(session)">
+              {{ $t("shop.newFlashItem") }}
+            </button>
+            <button class="btn sm" :disabled="actionId === session.id" @click="removeSession(session)">
+              {{ $t("common.delete") }}
+            </button>
+          </div>
+        </header>
+
+        <h3 class="sub-title">{{ $t("shop.flashItems") }}</h3>
+        <div v-if="!session.items.length" class="muted">{{ $t("shop.noFlashItems") }}</div>
+        <div v-else class="table-wrap">
+          <table class="table">
+            <thead>
+              <tr>
+                <th>{{ $t("shop.flashSku") }}</th>
+                <th>{{ $t("shop.flashSalePrice") }}</th>
+                <th>{{ $t("shop.flashOriginalPrice") }}</th>
+                <th>{{ $t("shop.flashRemaining") }}</th>
+                <th>{{ $t("shop.flashSold") }}</th>
+                <th>{{ $t("shop.flashPerCustomerLimit") }}</th>
+                <th>{{ $t("common.actions") }}</th>
+              </tr>
+            </thead>
+            <tbody>
+              <tr v-for="item in session.items" :key="item.id">
+                <td>{{ item.sku_code }}</td>
+                <td>{{ fmt(item.sale_price_minor, item.currency) }}</td>
+                <td>{{ fmt(item.original_price_minor, item.original_currency) }}</td>
+                <td>{{ item.reserved_stock }}</td>
+                <td>{{ item.sold_count }}</td>
+                <td>{{ item.per_customer_limit }}</td>
+                <td class="action-row">
+                  <button class="btn sm" :disabled="actionId === item.id" @click="editItem(session, item)">
+                    {{ $t("shop.edit") }}
+                  </button>
+                  <button class="btn sm" :disabled="actionId === item.id" @click="removeItem(item)">
+                    {{ $t("common.delete") }}
+                  </button>
+                </td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+
+        <div v-if="itemSessionId === session.id" class="item-form">
+          <h3 class="sub-title">
+            {{ editingItemId ? $t("shop.editFlashItem") : $t("shop.newFlashItem") }}
+          </h3>
+          <div class="form-grid">
+            <label>
+              <span>{{ $t("shop.flashSku") }}</span>
+              <select v-model="itemForm.skuId" class="input">
+                <option value="">{{ $t("shop.flashSelectSku") }}</option>
+                <option v-for="option in skuOptions" :key="option.id" :value="option.id">
+                  {{ option.label }}
+                </option>
+              </select>
+            </label>
+            <label>
+              <span>{{ $t("shop.flashSalePrice") }}</span>
+              <input v-model.number="itemForm.salePriceMinor" class="input" type="number" min="1" step="1" />
+            </label>
+            <label>
+              <span>{{ $t("shop.couponCurrency") }}</span>
+              <select v-model="itemForm.currency" class="input">
+                <option v-for="c in currencies" :key="c.code" :value="c.code">{{ c.code }}</option>
+              </select>
+            </label>
+            <label>
+              <span>{{ $t("shop.flashReservedStock") }}</span>
+              <input v-model.number="itemForm.reservedStock" class="input" type="number" min="0" step="1" />
+            </label>
+            <label>
+              <span>{{ $t("shop.flashPerCustomerLimit") }}</span>
+              <input v-model.number="itemForm.perCustomerLimit" class="input" type="number" min="1" step="1" />
+            </label>
+          </div>
+          <div class="form-actions">
+            <button class="btn primary" :disabled="saving" @click="saveItem(session)">
+              {{ $t("shop.saveFlashItem") }}
+            </button>
+            <button class="btn" type="button" @click="itemSessionId = ''; resetItemForm()">
+              {{ $t("common.cancel") }}
+            </button>
+          </div>
+        </div>
+      </section>
+    </template>
+  </div>
+</template>
+
+<style scoped>
+.create-card {
+  margin-bottom: 20px;
+}
+.create-card h2 {
+  font-size: 16px;
+  margin: 0 0 16px;
+}
+.form-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
+  gap: 12px;
+  margin: 12px 0;
+}
+.form-grid label {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  font-size: 13px;
+}
+.form-grid .checkbox {
+  flex-direction: row;
+  align-items: center;
+  gap: 8px;
+}
+.form-actions {
+  display: flex;
+  gap: 8px;
+}
+.session-card {
+  margin-bottom: 16px;
+}
+.session-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  flex-wrap: wrap;
+}
+.session-head .muted {
+  margin: 0 10px;
+}
+.sub-title {
+  font-size: 14px;
+  margin: 16px 0 8px;
+}
+.table-wrap {
+  overflow-x: auto;
+}
+.action-row {
+  display: flex;
+  gap: 6px;
+}
+.item-form {
+  margin-top: 16px;
+  padding-top: 12px;
+  border-top: 1px solid var(--mall-line, #eee);
+}
+</style>