diff --git a/frontend/admin-web/src/app/(dashboard)/pre-planting/page.tsx b/frontend/admin-web/src/app/(dashboard)/pre-planting/page.tsx
new file mode 100644
index 00000000..d1b6d1f4
--- /dev/null
+++ b/frontend/admin-web/src/app/(dashboard)/pre-planting/page.tsx
@@ -0,0 +1,475 @@
+'use client';
+
+/**
+ * [2026-02-17] 预种计划管理页面
+ *
+ * 管理员端的预种计划管理页面，提供：
+ * - 预种开关控制（开启/关闭预种购买功能）
+ * - 统计汇总（总订单、总份数、总金额、合成树数、参与用户数）
+ * - 预种订单列表（按用户/状态过滤）
+ * - 预种持仓列表（查看用户持仓概况）
+ * - 合并记录列表（查看合并和签约状态）
+ *
+ * === 技术栈 ===
+ * - React Query (usePrePlanting* hooks) 数据获取
+ * - SCSS Modules 样式
+ * - PageContainer 布局包裹
+ *
+ * === 与现有页面的关系 ===
+ * 完全独立页面，不修改任何现有管理页面。
+ * 侧边栏入口在"数据统计"和"系统维护"之间。
+ */
+
+import { useState } from 'react';
+import { Button } from '@/components/common';
+import { PageContainer } from '@/components/layout';
+import { cn } from '@/utils/helpers';
+import { formatDateTime } from '@/utils/formatters';
+import {
+  usePrePlantingConfig,
+  usePrePlantingStats,
+  usePrePlantingOrders,
+  usePrePlantingPositions,
+  usePrePlantingMerges,
+  useTogglePrePlantingConfig,
+} from '@/hooks';
+import type {
+  PrePlantingAdminOrder,
+  PrePlantingAdminPosition,
+  PrePlantingAdminMerge,
+} from '@/services/prePlantingService';
+import styles from './pre-planting.module.scss';
+
+// Tab 类型定义
+type TabKey = 'orders' | 'positions' | 'merges';
+
+// 订单状态显示映射
+const ORDER_STATUS_MAP: Record<string, { label: string; style: string }> = {
+  CREATED: { label: '待支付', style: 'created' },
+  PAID: { label: '已支付', style: 'paid' },
+  MERGED: { label: '已合并', style: 'merged' },
+};
+
+// 合同状态显示映射
+const CONTRACT_STATUS_MAP: Record<string, { label: string; style: string }> = {
+  PENDING: { label: '待签约', style: 'pending' },
+  SIGNED: { label: '已签约', style: 'signed' },
+  EXPIRED: { label: '已过期', style: 'expired' },
+};
+
+/**
+ * 预种计划管理页面
+ */
+export default function PrePlantingPage() {
+  // === Tab 与分页状态 ===
+  const [activeTab, setActiveTab] = useState<TabKey>('orders');
+  const [keyword, setKeyword] = useState('');
+  const [page, setPage] = useState(1);
+  const pageSize = 20;
+
+  // === React Query Hooks ===
+  const { data: config, isLoading: configLoading } = usePrePlantingConfig();
+  const { data: stats, isLoading: statsLoading } = usePrePlantingStats();
+  const toggleConfig = useTogglePrePlantingConfig();
+
+  const ordersQuery = usePrePlantingOrders({
+    page,
+    pageSize,
+    keyword: activeTab === 'orders' ? keyword : undefined,
+  });
+  const positionsQuery = usePrePlantingPositions({
+    page,
+    pageSize,
+    keyword: activeTab === 'positions' ? keyword : undefined,
+  });
+  const mergesQuery = usePrePlantingMerges({
+    page,
+    pageSize,
+    keyword: activeTab === 'merges' ? keyword : undefined,
+  });
+
+  // === 开关切换 ===
+  const handleToggle = () => {
+    if (!config || toggleConfig.isPending) return;
+    toggleConfig.mutate(!config.isActive);
+  };
+
+  // === Tab 切换时重置分页 ===
+  const handleTabChange = (tab: TabKey) => {
+    setActiveTab(tab);
+    setPage(1);
+    setKeyword('');
+  };
+
+  // === 格式化数字（千分位） ===
+  const formatNumber = (n: number) =>
+    n.toLocaleString('en-US');
+
+  return (
+    <PageContainer title="预种管理">
+      <div className={styles.prePlanting}>
+        {/* 页面标题 */}
+        <div className={styles.prePlanting__header}>
+          <h1 className={styles.prePlanting__title}>预种计划管理</h1>
+        </div>
+
+        {/* 预种开关卡片 */}
+        <div
+          className={cn(
+            styles.prePlanting__switchCard,
+            config?.isActive && styles['prePlanting__switchCard--active']
+          )}
+        >
+          <div className={styles.prePlanting__switchInfo}>
+            <span className={styles.prePlanting__switchIcon}>
+              {config?.isActive ? '🌱' : '⏸️'}
+            </span>
+            <div>
+              <div className={styles.prePlanting__switchTitle}>
+                预种功能状态
+                <span
+                  className={cn(
+                    styles.prePlanting__switchBadge,
+                    config?.isActive
+                      ? styles['prePlanting__switchBadge--on']
+                      : styles['prePlanting__switchBadge--off']
+                  )}
+                >
+                  {configLoading ? '加载中' : config?.isActive ? '已开启' : '已关闭'}
+                </span>
+              </div>
+              <div className={styles.prePlanting__switchDesc}>
+                {config?.isActive
+                  ? '用户可正常购买预种份额（3171 USDT/份）'
+                  : '新用户不可购买；已有未凑满份额的用户可继续购买至 5 的倍数'}
+              </div>
+            </div>
+          </div>
+          <button
+            className={cn(
+              styles.prePlanting__switchBtn,
+              config?.isActive
+                ? styles['prePlanting__switchBtn--on']
+                : styles['prePlanting__switchBtn--off']
+            )}
+            onClick={handleToggle}
+            disabled={configLoading || toggleConfig.isPending}
+          >
+            {toggleConfig.isPending
+              ? '切换中...'
+              : config?.isActive
+                ? '关闭预种'
+                : '开启预种'}
+          </button>
+        </div>
+
+        {/* 统计卡片 */}
+        <div className={styles.prePlanting__statsGrid}>
+          <div className={styles.prePlanting__statCard}>
+            <div className={styles.prePlanting__statValue}>
+              {statsLoading ? '-' : formatNumber(stats?.totalOrders ?? 0)}
+            </div>
+            <div className={styles.prePlanting__statLabel}>总订单数</div>
+          </div>
+          <div className={styles.prePlanting__statCard}>
+            <div className={styles.prePlanting__statValue}>
+              {statsLoading ? '-' : formatNumber(stats?.totalPortions ?? 0)}
+            </div>
+            <div className={styles.prePlanting__statLabel}>总份数</div>
+          </div>
+          <div className={styles.prePlanting__statCard}>
+            <div className={styles.prePlanting__statValue}>
+              {statsLoading ? '-' : formatNumber(stats?.totalAmount ?? 0)}
+            </div>
+            <div className={styles.prePlanting__statLabel}>总金额 (USDT)</div>
+          </div>
+          <div className={styles.prePlanting__statCard}>
+            <div className={styles.prePlanting__statValue}>
+              {statsLoading ? '-' : formatNumber(stats?.totalTreesMerged ?? 0)}
+            </div>
+            <div className={styles.prePlanting__statLabel}>已合成树数</div>
+          </div>
+        </div>
+
+        {/* Tab 切换 */}
+        <div className={styles.prePlanting__tabs}>
+          <button
+            className={cn(
+              styles.prePlanting__tab,
+              activeTab === 'orders' && styles['prePlanting__tab--active']
+            )}
+            onClick={() => handleTabChange('orders')}
+          >
+            预种订单
+          </button>
+          <button
+            className={cn(
+              styles.prePlanting__tab,
+              activeTab === 'positions' && styles['prePlanting__tab--active']
+            )}
+            onClick={() => handleTabChange('positions')}
+          >
+            用户持仓
+          </button>
+          <button
+            className={cn(
+              styles.prePlanting__tab,
+              activeTab === 'merges' && styles['prePlanting__tab--active']
+            )}
+            onClick={() => handleTabChange('merges')}
+          >
+            合并记录
+          </button>
+        </div>
+
+        {/* 数据内容区 */}
+        <div className={styles.prePlanting__card}>
+          {/* 搜索栏 */}
+          <div className={styles.prePlanting__toolbar}>
+            <div className={styles.prePlanting__search}>
+              <input
+                type="text"
+                placeholder={
+                  activeTab === 'orders'
+                    ? '搜索订单号或用户账号...'
+                    : activeTab === 'positions'
+                      ? '搜索用户账号...'
+                      : '搜索合并号或用户账号...'
+                }
+                value={keyword}
+                onChange={(e) => {
+                  setKeyword(e.target.value);
+                  setPage(1);
+                }}
+              />
+            </div>
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => {
+                if (activeTab === 'orders') ordersQuery.refetch();
+                else if (activeTab === 'positions') positionsQuery.refetch();
+                else mergesQuery.refetch();
+              }}
+            >
+              刷新
+            </Button>
+          </div>
+
+          {/* Tab 对应的表格 */}
+          {activeTab === 'orders' && (
+            <OrdersTable
+              data={ordersQuery.data?.items ?? []}
+              loading={ordersQuery.isLoading}
+              error={ordersQuery.error}
+              onRetry={() => ordersQuery.refetch()}
+            />
+          )}
+          {activeTab === 'positions' && (
+            <PositionsTable
+              data={positionsQuery.data?.items ?? []}
+              loading={positionsQuery.isLoading}
+              error={positionsQuery.error}
+              onRetry={() => positionsQuery.refetch()}
+            />
+          )}
+          {activeTab === 'merges' && (
+            <MergesTable
+              data={mergesQuery.data?.items ?? []}
+              loading={mergesQuery.isLoading}
+              error={mergesQuery.error}
+              onRetry={() => mergesQuery.refetch()}
+            />
+          )}
+        </div>
+      </div>
+    </PageContainer>
+  );
+}
+
+// ============================================
+// 子组件：订单表格
+// ============================================
+
+function OrdersTable({
+  data,
+  loading,
+  error,
+  onRetry,
+}: {
+  data: PrePlantingAdminOrder[];
+  loading: boolean;
+  error: Error | null;
+  onRetry: () => void;
+}) {
+  if (loading) return <div className={styles.prePlanting__loading}>加载中...</div>;
+  if (error) {
+    return (
+      <div className={styles.prePlanting__error}>
+        <span>{error.message || '加载失败'}</span>
+        <Button variant="outline" size="sm" onClick={onRetry}>重试</Button>
+      </div>
+    );
+  }
+  if (data.length === 0) return <div className={styles.prePlanting__empty}>暂无预种订单</div>;
+
+  return (
+    <table className={styles.prePlanting__table}>
+      <thead>
+        <tr>
+          <th>订单号</th>
+          <th>用户账号</th>
+          <th>份数</th>
+          <th>金额 (USDT)</th>
+          <th>状态</th>
+          <th>支付时间</th>
+          <th>创建时间</th>
+        </tr>
+      </thead>
+      <tbody>
+        {data.map((order) => {
+          const status = ORDER_STATUS_MAP[order.status] ?? { label: order.status, style: '' };
+          return (
+            <tr key={order.id}>
+              <td>{order.orderNo}</td>
+              <td>{order.accountSequence}</td>
+              <td>{order.portionCount}</td>
+              <td>{order.totalAmount.toLocaleString()}</td>
+              <td>
+                <span className={cn(styles.prePlanting__status, styles[`prePlanting__status--${status.style}`])}>
+                  {status.label}
+                </span>
+              </td>
+              <td>{order.paidAt ? formatDateTime(order.paidAt) : '-'}</td>
+              <td>{formatDateTime(order.createdAt)}</td>
+            </tr>
+          );
+        })}
+      </tbody>
+    </table>
+  );
+}
+
+// ============================================
+// 子组件：持仓表格
+// ============================================
+
+function PositionsTable({
+  data,
+  loading,
+  error,
+  onRetry,
+}: {
+  data: PrePlantingAdminPosition[];
+  loading: boolean;
+  error: Error | null;
+  onRetry: () => void;
+}) {
+  if (loading) return <div className={styles.prePlanting__loading}>加载中...</div>;
+  if (error) {
+    return (
+      <div className={styles.prePlanting__error}>
+        <span>{error.message || '加载失败'}</span>
+        <Button variant="outline" size="sm" onClick={onRetry}>重试</Button>
+      </div>
+    );
+  }
+  if (data.length === 0) return <div className={styles.prePlanting__empty}>暂无持仓记录</div>;
+
+  return (
+    <table className={styles.prePlanting__table}>
+      <thead>
+        <tr>
+          <th>用户账号</th>
+          <th>累计份数</th>
+          <th>待合并</th>
+          <th>已合并</th>
+          <th>合成树数</th>
+          <th>省市</th>
+          <th>首次购买</th>
+        </tr>
+      </thead>
+      <tbody>
+        {data.map((pos) => (
+          <tr key={pos.id}>
+            <td>{pos.accountSequence}</td>
+            <td>{pos.totalPortions}</td>
+            <td>{pos.availablePortions} / 5</td>
+            <td>{pos.mergedPortions}</td>
+            <td>{pos.totalTreesMerged}</td>
+            <td>{pos.provinceCode && pos.cityCode ? `${pos.provinceCode} · ${pos.cityCode}` : '-'}</td>
+            <td>{pos.firstPurchaseAt ? formatDateTime(pos.firstPurchaseAt) : '-'}</td>
+          </tr>
+        ))}
+      </tbody>
+    </table>
+  );
+}
+
+// ============================================
+// 子组件：合并记录表格
+// ============================================
+
+function MergesTable({
+  data,
+  loading,
+  error,
+  onRetry,
+}: {
+  data: PrePlantingAdminMerge[];
+  loading: boolean;
+  error: Error | null;
+  onRetry: () => void;
+}) {
+  if (loading) return <div className={styles.prePlanting__loading}>加载中...</div>;
+  if (error) {
+    return (
+      <div className={styles.prePlanting__error}>
+        <span>{error.message || '加载失败'}</span>
+        <Button variant="outline" size="sm" onClick={onRetry}>重试</Button>
+      </div>
+    );
+  }
+  if (data.length === 0) return <div className={styles.prePlanting__empty}>暂无合并记录</div>;
+
+  return (
+    <table className={styles.prePlanting__table}>
+      <thead>
+        <tr>
+          <th>合并号</th>
+          <th>用户账号</th>
+          <th>树数</th>
+          <th>来源订单</th>
+          <th>合同状态</th>
+          <th>签约时间</th>
+          <th>挖矿开启</th>
+          <th>合并时间</th>
+        </tr>
+      </thead>
+      <tbody>
+        {data.map((merge) => {
+          const cStatus = CONTRACT_STATUS_MAP[merge.contractStatus] ?? {
+            label: merge.contractStatus,
+            style: '',
+          };
+          return (
+            <tr key={merge.id}>
+              <td>{merge.mergeNo}</td>
+              <td>{merge.accountSequence}</td>
+              <td>{merge.treeCount}</td>
+              <td>{merge.sourceOrderNos.length} 笔</td>
+              <td>
+                <span className={cn(styles.prePlanting__status, styles[`prePlanting__status--${cStatus.style}`])}>
+                  {cStatus.label}
+                </span>
+              </td>
+              <td>{merge.contractSignedAt ? formatDateTime(merge.contractSignedAt) : '-'}</td>
+              <td>{merge.miningEnabledAt ? formatDateTime(merge.miningEnabledAt) : '-'}</td>
+              <td>{formatDateTime(merge.mergedAt)}</td>
+            </tr>
+          );
+        })}
+      </tbody>
+    </table>
+  );
+}
diff --git a/frontend/admin-web/src/app/(dashboard)/pre-planting/pre-planting.module.scss b/frontend/admin-web/src/app/(dashboard)/pre-planting/pre-planting.module.scss
new file mode 100644
index 00000000..be1bc873
--- /dev/null
+++ b/frontend/admin-web/src/app/(dashboard)/pre-planting/pre-planting.module.scss
@@ -0,0 +1,310 @@
+/**
+ * [2026-02-17] 预种计划管理页面样式
+ *
+ * 包含：开关状态卡片、统计卡片、Tab 切换、数据表格
+ * 风格与全局管理后台一致
+ */
+
+@use '@/styles/variables' as *;
+
+.prePlanting {
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+
+  // 页面标题
+  &__header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+  }
+
+  &__title {
+    font-size: 24px;
+    font-weight: 600;
+    color: $text-primary;
+  }
+
+  // 开关状态卡片
+  &__switchCard {
+    background: linear-gradient(135deg, #fff9e6 0%, #fff3cc 100%);
+    border: 1px solid #ffd666;
+    border-radius: 12px;
+    padding: 20px 24px;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+
+    &--active {
+      background: linear-gradient(135deg, #f6ffed 0%, #d9f7be 100%);
+      border-color: #95de64;
+    }
+  }
+
+  &__switchInfo {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+  }
+
+  &__switchIcon {
+    width: 40px;
+    height: 40px;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 20px;
+    background: rgba(255, 255, 255, 0.8);
+  }
+
+  &__switchTitle {
+    font-size: 16px;
+    font-weight: 600;
+    color: $text-primary;
+  }
+
+  &__switchDesc {
+    font-size: 13px;
+    color: $text-secondary;
+    margin-top: 2px;
+  }
+
+  &__switchBadge {
+    display: inline-block;
+    padding: 2px 10px;
+    border-radius: 12px;
+    font-size: 12px;
+    font-weight: 500;
+    margin-left: 8px;
+
+    &--on {
+      background: #52c41a;
+      color: white;
+    }
+
+    &--off {
+      background: #faad14;
+      color: white;
+    }
+  }
+
+  &__switchBtn {
+    padding: 8px 20px;
+    border-radius: 8px;
+    border: none;
+    font-size: 14px;
+    font-weight: 600;
+    cursor: pointer;
+    transition: all 0.2s;
+
+    &--on {
+      background: #ff4d4f;
+      color: white;
+
+      &:hover {
+        background: #ff7875;
+      }
+    }
+
+    &--off {
+      background: #52c41a;
+      color: white;
+
+      &:hover {
+        background: #73d13d;
+      }
+    }
+
+    &:disabled {
+      opacity: 0.5;
+      cursor: not-allowed;
+    }
+  }
+
+  // 统计卡片网格
+  &__statsGrid {
+    display: grid;
+    grid-template-columns: repeat(4, 1fr);
+    gap: 16px;
+
+    @media (max-width: 1200px) {
+      grid-template-columns: repeat(2, 1fr);
+    }
+  }
+
+  &__statCard {
+    background: $card-background;
+    border-radius: 12px;
+    padding: 20px;
+    box-shadow: $shadow-base;
+    text-align: center;
+  }
+
+  &__statValue {
+    font-size: 28px;
+    font-weight: 700;
+    color: $text-primary;
+  }
+
+  &__statLabel {
+    font-size: 13px;
+    color: $text-secondary;
+    margin-top: 4px;
+  }
+
+  // Tab 切换
+  &__tabs {
+    display: flex;
+    gap: 0;
+    border-bottom: 1px solid $border-color;
+  }
+
+  &__tab {
+    padding: 12px 24px;
+    font-size: 15px;
+    font-weight: 500;
+    color: $text-secondary;
+    cursor: pointer;
+    border: none;
+    background: none;
+    border-bottom: 2px solid transparent;
+    transition: all 0.2s;
+
+    &:hover {
+      color: $text-primary;
+    }
+
+    &--active {
+      color: #d4af37;
+      border-bottom-color: #d4af37;
+      font-weight: 600;
+    }
+  }
+
+  // 数据卡片容器
+  &__card {
+    background: $card-background;
+    border-radius: 12px;
+    padding: 24px;
+    box-shadow: $shadow-base;
+  }
+
+  &__toolbar {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 16px;
+  }
+
+  &__search {
+    display: flex;
+    gap: 8px;
+    align-items: center;
+
+    input {
+      width: 280px;
+      padding: 8px 12px;
+      border: 1px solid $border-color;
+      border-radius: 8px;
+      font-size: 14px;
+      outline: none;
+
+      &:focus {
+        border-color: #d4af37;
+      }
+    }
+  }
+
+  // 表格
+  &__table {
+    width: 100%;
+    border-collapse: collapse;
+
+    th,
+    td {
+      padding: 12px 16px;
+      text-align: left;
+      border-bottom: 1px solid $border-color;
+      font-size: 14px;
+    }
+
+    th {
+      font-weight: 600;
+      color: $text-secondary;
+      background: #fafafa;
+    }
+
+    td {
+      color: $text-primary;
+    }
+
+    tr:hover td {
+      background: #fafafa;
+    }
+  }
+
+  // 状态标签
+  &__status {
+    display: inline-block;
+    padding: 2px 8px;
+    border-radius: 10px;
+    font-size: 12px;
+    font-weight: 500;
+
+    &--created {
+      background: #fff7e6;
+      color: #d48806;
+    }
+
+    &--paid {
+      background: #f6ffed;
+      color: #389e0d;
+    }
+
+    &--merged {
+      background: #fff9e6;
+      color: #d4af37;
+    }
+
+    &--pending {
+      background: #fff7e6;
+      color: #d48806;
+    }
+
+    &--signed {
+      background: #f6ffed;
+      color: #389e0d;
+    }
+
+    &--expired {
+      background: #f5f5f5;
+      color: #8c8c8c;
+    }
+  }
+
+  // 加载 / 空 / 错误 状态
+  &__loading,
+  &__empty,
+  &__error {
+    text-align: center;
+    padding: 48px 24px;
+    color: $text-secondary;
+    font-size: 14px;
+  }
+
+  &__error {
+    color: #ff4d4f;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 8px;
+  }
+
+  // 分页
+  &__pagination {
+    display: flex;
+    justify-content: flex-end;
+    margin-top: 16px;
+  }
+}
diff --git a/frontend/admin-web/src/components/layout/Sidebar/Sidebar.tsx b/frontend/admin-web/src/components/layout/Sidebar/Sidebar.tsx
index e31b1fc0..cbd45c5e 100644
--- a/frontend/admin-web/src/components/layout/Sidebar/Sidebar.tsx
+++ b/frontend/admin-web/src/components/layout/Sidebar/Sidebar.tsx
@@ -35,6 +35,8 @@ const topMenuItems: MenuItem[] = [
   { key: 'withdrawals', icon: '/images/Container5.svg', label: '提现审核', path: '/withdrawals' },
   { key: 'system-transfer', icon: '/images/Container5.svg', label: '系统划转', path: '/system-transfer' },
   { key: 'statistics', icon: '/images/Container5.svg', label: '数据统计', path: '/statistics' },
+  // [2026-02-17] 新增：预种计划管理（3171 USDT/份预种开关 + 订单/持仓/合并查询）
+  { key: 'pre-planting', icon: '/images/Container3.svg', label: '预种管理', path: '/pre-planting' },
   { key: 'maintenance', icon: '/images/Container6.svg', label: '系统维护', path: '/maintenance' },
   { key: 'settings', icon: '/images/Container6.svg', label: '系统设置', path: '/settings' },
 ];