diff --git a/apps/shop-admin/app.vue b/apps/shop-admin/app.vue
index 282b631..664ddb0 100644
--- a/apps/shop-admin/app.vue
+++ b/apps/shop-admin/app.vue
@@ -27,6 +27,7 @@ watchEffect(() => {
       <NuxtLink to="/invoices">{{ $t("nav.invoices") }}</NuxtLink>
       <NuxtLink to="/coupons">{{ $t("nav.coupons") }}</NuxtLink>
       <NuxtLink to="/flash-sales">{{ $t("nav.flashSales") }}</NuxtLink>
+      <NuxtLink to="/group-buying">{{ $t("nav.groupBuying") }}</NuxtLink>
     </aside>
     <main>
       <div class="main-head">
diff --git a/apps/shop-admin/locales-extra.ts b/apps/shop-admin/locales-extra.ts
index de47042..d4d4e30 100644
--- a/apps/shop-admin/locales-extra.ts
+++ b/apps/shop-admin/locales-extra.ts
@@ -7,6 +7,7 @@ export const enExtra = {
   nav: {
     coupons: "Coupons",
     flashSales: "Flash sales",
+    groupBuying: "Group buying",
   },
   shop: {
     dashboardTitle: "Merchant dashboard",
@@ -117,6 +118,33 @@ export const enExtra = {
     flashStockInvalid: "Reserved stock cannot be negative.",
     flashLimitInvalid: "Per-customer limit must be a positive integer.",
     flashWindowInvalid: "End must not precede start.",
+    groupBuyingList: "Group buying",
+    newGroupActivity: "New activity",
+    editGroupActivity: "Edit activity",
+    groupNameEn: "Name (English)",
+    groupNameZh: "Name (中文)",
+    groupDescriptionEn: "Description (English)",
+    groupDescriptionZh: "Description (中文)",
+    groupSku: "SKU",
+    groupPrice: "Group price (minor units)",
+    groupRequiredMembers: "Required paid members",
+    groupLifetimeHours: "Group lifetime (hours)",
+    groupStartsAt: "Starts at",
+    groupEndsAt: "Ends at",
+    groupEnabled: "Enabled",
+    createGroupActivity: "Create activity",
+    updateGroupActivity: "Update activity",
+    groupActivitySaved: "Activity saved.",
+    groupOpenGroups: "Open groups",
+    groupNoOpenGroups: "No open groups.",
+    groupPaidMembers: "Joined",
+    groupExpiresAt: "Expires",
+    groupNameRequired: "Both language names are required.",
+    groupSkuRequired: "Choose a SKU.",
+    groupPriceInvalid: "Group price must be a positive integer.",
+    groupMembersInvalid: "At least two paid members are required.",
+    groupLifetimeInvalid: "Group lifetime must be a positive number of hours.",
+    groupWindowInvalid: "End must not precede start.",
   },
 } as Record<string, unknown>;
 
@@ -127,6 +155,7 @@ export const zhExtra = {
   nav: {
     coupons: "优惠券",
     flashSales: "秒杀",
+    groupBuying: "拼团",
   },
   shop: {
     dashboardTitle: "商家仪表盘",
@@ -237,5 +266,32 @@ export const zhExtra = {
     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。",
+    groupBuyingList: "拼团活动",
+    newGroupActivity: "新建活动",
+    editGroupActivity: "编辑活动",
+    groupNameEn: "名称（英文）",
+    groupNameZh: "名称（中文）",
+    groupDescriptionEn: "描述（英文）",
+    groupDescriptionZh: "描述（中文）",
+    groupSku: "SKU",
+    groupPrice: "拼团价（最小单位）",
+    groupRequiredMembers: "成团人数",
+    groupLifetimeHours: "团有效期（小时）",
+    groupStartsAt: "开始时间",
+    groupEndsAt: "结束时间",
+    groupEnabled: "启用",
+    createGroupActivity: "创建活动",
+    updateGroupActivity: "更新活动",
+    groupActivitySaved: "活动已保存。",
+    groupOpenGroups: "进行中的团",
+    groupNoOpenGroups: "暂无进行中的团。",
+    groupPaidMembers: "已参团",
+    groupExpiresAt: "到期",
+    groupNameRequired: "中英文名称均为必填项。",
+    groupSkuRequired: "请选择 SKU。",
+    groupPriceInvalid: "拼团价必须为正整数。",
+    groupMembersInvalid: "成团人数至少为 2。",
+    groupLifetimeInvalid: "团有效期必须为正数小时。",
+    groupWindowInvalid: "结束时间不能早于开始时间。",
   },
 } as Record<string, unknown>;
diff --git a/apps/shop-admin/pages/group-buying.vue b/apps/shop-admin/pages/group-buying.vue
new file mode 100644
index 0000000..6104fe9
--- /dev/null
+++ b/apps/shop-admin/pages/group-buying.vue
@@ -0,0 +1,356 @@
+<script setup lang="ts">
+import type { Currency, GroupBuyingActivityView } from "@vmall/shared";
+
+definePageMeta({ middleware: "auth" });
+
+const { $api } = useNuxtApp();
+const { locale, t: translate } = useI18n();
+const { load: loadMoney, fmt } = useMoney();
+
+const activities = ref<GroupBuyingActivityView[]>([]);
+const currencies = ref<Currency[]>([]);
+const skuOptions = ref<{ id: string; label: string }[]>([]);
+const loading = ref(true);
+const saving = ref(false);
+const actionId = ref("");
+const error = ref("");
+const message = ref("");
+const editingId = ref("");
+
+const form = reactive({
+  skuId: "",
+  nameEn: "",
+  nameZh: "",
+  descriptionEn: "",
+  descriptionZh: "",
+  groupPriceMinor: 0,
+  currency: "USD",
+  requiredMembers: 2,
+  groupLifetimeHours: 24,
+  startsAt: "",
+  endsAt: "",
+  enabled: true,
+});
+
+function toLocalInput(iso: string): string {
+  const d = new Date(iso);
+  const pad = (n: number) => String(n).padStart(2, "0");
+  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}T${pad(d.getHours())}:${pad(d.getMinutes())}`;
+}
+
+function resetForm(): void {
+  const now = new Date();
+  const later = new Date(now.getTime() + 7 * 24 * 3600 * 1000);
+  editingId.value = "";
+  form.skuId = skuOptions.value[0]?.id ?? "";
+  form.nameEn = "";
+  form.nameZh = "";
+  form.descriptionEn = "";
+  form.descriptionZh = "";
+  form.groupPriceMinor = 0;
+  form.currency =
+    currencies.value.find((c) => c.is_base)?.code ?? currencies.value[0]?.code ?? "USD";
+  form.requiredMembers = 2;
+  form.groupLifetimeHours = 24;
+  form.startsAt = toLocalInput(now.toISOString());
+  form.endsAt = toLocalInput(later.toISOString());
+  form.enabled = true;
+}
+
+async function load(): Promise<void> {
+  loading.value = true;
+  error.value = "";
+  try {
+    activities.value = await $api.shop.listGroupBuyingActivities();
+  } 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 save(): Promise<void> {
+  error.value = "";
+  message.value = "";
+  if (!form.nameEn.trim() || !form.nameZh.trim()) {
+    error.value = translate("shop.groupNameRequired");
+    return;
+  }
+  if (!form.skuId) {
+    error.value = translate("shop.groupSkuRequired");
+    return;
+  }
+  if (!(Number(form.groupPriceMinor) > 0)) {
+    error.value = translate("shop.groupPriceInvalid");
+    return;
+  }
+  if (Number(form.requiredMembers) < 2) {
+    error.value = translate("shop.groupMembersInvalid");
+    return;
+  }
+  if (!(Number(form.groupLifetimeHours) > 0)) {
+    error.value = translate("shop.groupLifetimeInvalid");
+    return;
+  }
+  if (new Date(form.endsAt) < new Date(form.startsAt)) {
+    error.value = translate("shop.groupWindowInvalid");
+    return;
+  }
+  const description =
+    form.descriptionEn.trim() && form.descriptionZh.trim()
+      ? { en: form.descriptionEn.trim(), zh: form.descriptionZh.trim() }
+      : null;
+  const body = {
+    sku_id: form.skuId,
+    name: { en: form.nameEn.trim(), zh: form.nameZh.trim() },
+    description,
+    group_price_minor: Number(form.groupPriceMinor),
+    currency: form.currency,
+    required_members: Number(form.requiredMembers),
+    starts_at: new Date(form.startsAt).toISOString(),
+    ends_at: new Date(form.endsAt).toISOString(),
+    group_lifetime_hours: Number(form.groupLifetimeHours),
+    enabled: form.enabled,
+  };
+  saving.value = true;
+  try {
+    if (editingId.value) await $api.shop.updateGroupBuyingActivity(editingId.value, body);
+    else await $api.shop.createGroupBuyingActivity(body);
+    message.value = translate("shop.groupActivitySaved");
+    resetForm();
+    await load();
+  } catch (err: unknown) {
+    error.value = err instanceof Error ? err.message : translate("common.error");
+  } finally {
+    saving.value = false;
+  }
+}
+
+function edit(activity: GroupBuyingActivityView): void {
+  editingId.value = activity.id;
+  form.skuId = activity.sku_id;
+  form.nameEn = activity.name.en ?? "";
+  form.nameZh = activity.name.zh ?? "";
+  form.descriptionEn = activity.description?.en ?? "";
+  form.descriptionZh = activity.description?.zh ?? "";
+  form.groupPriceMinor = activity.group_price_minor;
+  form.currency = activity.currency;
+  form.requiredMembers = activity.required_members;
+  form.groupLifetimeHours = activity.group_lifetime_hours;
+  form.startsAt = toLocalInput(activity.starts_at);
+  form.endsAt = toLocalInput(activity.ends_at);
+  form.enabled = activity.enabled;
+}
+
+async function remove(activity: GroupBuyingActivityView): Promise<void> {
+  actionId.value = activity.id;
+  error.value = "";
+  try {
+    await $api.shop.deleteGroupBuyingActivity(activity.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()]);
+  resetForm();
+  await load();
+});
+</script>
+
+<template>
+  <div class="page">
+    <h1 class="page-title">{{ $t("shop.groupBuyingList") }}</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>{{ editingId ? $t("shop.editGroupActivity") : $t("shop.newGroupActivity") }}</h2>
+      <div class="form-grid">
+        <label>
+          <span>{{ $t("shop.groupSku") }}</span>
+          <select v-model="form.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.groupNameEn") }}</span>
+          <input v-model="form.nameEn" class="input" type="text" />
+        </label>
+        <label>
+          <span>{{ $t("shop.groupNameZh") }}</span>
+          <input v-model="form.nameZh" class="input" type="text" />
+        </label>
+        <label>
+          <span>{{ $t("shop.groupDescriptionEn") }}</span>
+          <input v-model="form.descriptionEn" class="input" type="text" />
+        </label>
+        <label>
+          <span>{{ $t("shop.groupDescriptionZh") }}</span>
+          <input v-model="form.descriptionZh" class="input" type="text" />
+        </label>
+        <label>
+          <span>{{ $t("shop.groupPrice") }}</span>
+          <input v-model.number="form.groupPriceMinor" class="input" type="number" min="1" step="1" />
+        </label>
+        <label>
+          <span>{{ $t("shop.couponCurrency") }}</span>
+          <select v-model="form.currency" class="input">
+            <option v-for="c in currencies" :key="c.code" :value="c.code">{{ c.code }}</option>
+          </select>
+        </label>
+        <label>
+          <span>{{ $t("shop.groupRequiredMembers") }}</span>
+          <input v-model.number="form.requiredMembers" class="input" type="number" min="2" step="1" />
+        </label>
+        <label>
+          <span>{{ $t("shop.groupLifetimeHours") }}</span>
+          <input v-model.number="form.groupLifetimeHours" class="input" type="number" min="1" step="1" />
+        </label>
+        <label>
+          <span>{{ $t("shop.groupStartsAt") }}</span>
+          <input v-model="form.startsAt" class="input" type="datetime-local" />
+        </label>
+        <label>
+          <span>{{ $t("shop.groupEndsAt") }}</span>
+          <input v-model="form.endsAt" class="input" type="datetime-local" />
+        </label>
+        <label class="checkbox">
+          <input v-model="form.enabled" type="checkbox" />
+          <span>{{ $t("shop.groupEnabled") }}</span>
+        </label>
+      </div>
+      <div class="form-actions">
+        <button class="btn primary" :disabled="saving" @click="save">
+          {{ editingId ? $t("shop.updateGroupActivity") : $t("shop.createGroupActivity") }}
+        </button>
+        <button v-if="editingId" class="btn" type="button" @click="resetForm">
+          {{ $t("common.cancel") }}
+        </button>
+      </div>
+    </section>
+
+    <p v-if="loading" class="muted">{{ $t("common.loading") }}</p>
+    <div v-else-if="!activities.length" class="card muted">{{ $t("common.empty") }}</div>
+    <div v-else class="table-wrap card">
+      <table class="table">
+        <thead>
+          <tr>
+            <th>{{ $t("shop.groupSku") }}</th>
+            <th>{{ $t("shop.groupNameEn") }}</th>
+            <th>{{ $t("shop.groupPrice") }}</th>
+            <th>{{ $t("shop.groupRequiredMembers") }}</th>
+            <th>{{ $t("shop.groupLifetimeHours") }}</th>
+            <th>{{ $t("shop.groupStartsAt") }}</th>
+            <th>{{ $t("shop.groupOpenGroups") }}</th>
+            <th>{{ $t("common.status") }}</th>
+            <th>{{ $t("common.actions") }}</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-for="activity in activities" :key="activity.id">
+            <td>{{ activity.sku_code }}</td>
+            <td>{{ activity.name[locale] ?? activity.name.en }}</td>
+            <td>{{ fmt(activity.group_price_minor, activity.currency) }}</td>
+            <td>{{ activity.required_members }}</td>
+            <td>{{ activity.group_lifetime_hours }}</td>
+            <td>{{ activity.starts_at.slice(0, 10) }}</td>
+            <td>
+              <template v-if="activity.open_groups.length">
+                <span v-for="group in activity.open_groups" :key="group.id" class="badge orange">
+                  {{ $t("shop.groupPaidMembers") }} {{ group.paid_member_count }}/{{ group.required_members }}
+                </span>
+              </template>
+              <span v-else class="muted">{{ $t("shop.groupNoOpenGroups") }}</span>
+            </td>
+            <td>
+              <span class="badge" :class="activity.enabled ? 'green' : 'red'">
+                {{ activity.enabled ? $t("shop.enabledOn") : $t("shop.enabledOff") }}
+              </span>
+            </td>
+            <td class="action-row">
+              <button class="btn sm" :disabled="actionId === activity.id" @click="edit(activity)">
+                {{ $t("shop.edit") }}
+              </button>
+              <button class="btn sm" :disabled="actionId === activity.id" @click="remove(activity)">
+                {{ $t("common.delete") }}
+              </button>
+            </td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+  </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;
+}
+.table-wrap {
+  overflow-x: auto;
+  padding: 0;
+}
+.table {
+  min-width: 1100px;
+}
+.action-row {
+  display: flex;
+  gap: 6px;
+}
+</style>