diff --git a/frontend/src/services/statistics.ts b/frontend/src/services/statistics.ts
new file mode 100644
index 0000000..c900a57
--- /dev/null
+++ b/frontend/src/services/statistics.ts
@@ -0,0 +1,37 @@
+// Statistics API Service
+import { apiClient } from './apiClient';
+import type { DashboardSummary, MonthlyStats, TrendStat, MonthlyCompare } from '../types';
+import { useUserStore } from '../stores/userStore';
+
+export const statisticsApi = {
+  // API: GET /api/dashboard/summary - 获取仪表盘汇总数据（余额、本月收入/支出、预算进度）
+  async getDashboardSummary(): Promise<DashboardSummary> {
+    const userId = useUserStore.getState().userId;
+    const response = await apiClient.get<DashboardSummary>('/dashboard/summary', { userId });
+    return response.data;
+  },
+
+  // API: GET /api/statistics/monthly - 获取月度分类统计数据（按支出分类聚合）
+  async getMonthlyStats(month: string): Promise<MonthlyStats> {
+    const userId = useUserStore.getState().userId;
+    const response = await apiClient.get<MonthlyStats>('/statistics/monthly', { userId, month });
+    return response.data;
+  },
+
+  // API: GET /api/statistics/trend - 获取日期趋势统计（按天聚合收入/支出）
+  async getTrendStats(startDate?: string, endDate?: string): Promise<TrendStat[]> {
+    const userId = useUserStore.getState().userId;
+    const params: Record<string, string | number> = { userId };
+    if (startDate) params.startDate = startDate;
+    if (endDate) params.endDate = endDate;
+    const response = await apiClient.get<TrendStat[]>('/statistics/trend', params);
+    return response.data;
+  },
+
+  // API: GET /api/statistics/compare - 获取本月与上月对比数据
+  async getMonthlyCompare(month: string): Promise<MonthlyCompare> {
+    const userId = useUserStore.getState().userId;
+    const response = await apiClient.get<MonthlyCompare>('/statistics/compare', { userId, month });
+    return response.data;
+  },
+};