diff --git a/apps/miniprogram/src/app.config.ts b/apps/miniprogram/src/app.config.ts
index 17a793f..a27f902 100644
--- a/apps/miniprogram/src/app.config.ts
+++ b/apps/miniprogram/src/app.config.ts
@@ -2,6 +2,8 @@ export default defineAppConfig({
   pages: [
     'pages/index/index',
     'pages/health/index',
+    'pages/health/input/index',
+    'pages/health/trend/index',
     'pages/appointment/index',
     'pages/article/index',
     'pages/profile/index',
diff --git a/apps/miniprogram/src/pages/health/index.scss b/apps/miniprogram/src/pages/health/index.scss
index 702c26f..015745e 100644
--- a/apps/miniprogram/src/pages/health/index.scss
+++ b/apps/miniprogram/src/pages/health/index.scss
@@ -1,27 +1,104 @@
 @import '../../styles/variables.scss';
 
-.placeholder-page {
+.health-page {
   min-height: 100vh;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
   background: $bg;
+  padding-bottom: 40px;
 }
 
-.placeholder-icon {
-  font-size: 80px;
-  margin-bottom: 20px;
+.health-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 24px 32px;
 }
 
-.placeholder-title {
+.health-header-title {
   font-size: 36px;
   font-weight: bold;
   color: $tx;
+}
+
+.health-header-btn {
+  background: $pri;
+  padding: 12px 28px;
+  border-radius: $r-sm;
+}
+
+.health-header-btn-text {
+  font-size: 26px;
+  color: white;
+  font-weight: bold;
+}
+
+.health-grid {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 20px;
+  padding: 0 24px;
+  margin-bottom: 32px;
+}
+
+.health-card {
+  background: $card;
+  border-radius: $r;
+  padding: 24px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
+}
+
+.health-card-label {
+  font-size: 24px;
+  color: $tx2;
+  display: block;
+  margin-bottom: 12px;
+}
+
+.health-card-value {
+  font-size: 40px;
+  font-weight: bold;
+  color: $pri;
+  display: block;
   margin-bottom: 8px;
 }
 
-.placeholder-desc {
-  font-size: 26px;
+.health-card-bottom {
+  display: flex;
+  justify-content: space-between;
+}
+
+.health-card-unit {
+  font-size: 22px;
   color: $tx3;
 }
+
+.health-card-status {
+  font-size: 22px;
+  color: $acc;
+}
+
+.health-actions {
+  display: flex;
+  gap: 16px;
+  padding: 0 24px;
+}
+
+.action-card {
+  flex: 1;
+  background: $card;
+  border-radius: $r;
+  padding: 24px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
+}
+
+.action-icon {
+  font-size: 40px;
+  margin-bottom: 8px;
+}
+
+.action-label {
+  font-size: 24px;
+  color: $tx2;
+}
diff --git a/apps/miniprogram/src/pages/health/index.tsx b/apps/miniprogram/src/pages/health/index.tsx
index 2f5de05..3487f8d 100644
--- a/apps/miniprogram/src/pages/health/index.tsx
+++ b/apps/miniprogram/src/pages/health/index.tsx
@@ -1,12 +1,67 @@
 import { View, Text } from '@tarojs/components';
+import Taro, { useDidShow } from '@tarojs/taro';
+import { useHealthStore } from '../../stores/health';
 import './index.scss';
 
 export default function Health() {
+  const { todaySummary, loading, refreshToday } = useHealthStore();
+
+  useDidShow(() => {
+    refreshToday();
+  });
+
+  const goToInput = () => {
+    Taro.navigateTo({ url: '/pages/health/input/index' });
+  };
+
+  const goToTrend = (indicator: string) => {
+    Taro.navigateTo({ url: `/pages/health/trend/index?indicator=${indicator}` });
+  };
+
+  const summary = todaySummary || {};
+  const items = [
+    { label: '血压', value: summary.blood_pressure ? `${summary.blood_pressure.systolic}/${summary.blood_pressure.diastolic}` : '--/--', unit: 'mmHg', indicator: 'blood_pressure_systolic', status: summary.blood_pressure?.status },
+    { label: '心率', value: summary.heart_rate ? `${summary.heart_rate.value}` : '--', unit: 'bpm', indicator: 'heart_rate', status: summary.heart_rate?.status },
+    { label: '血糖', value: summary.blood_sugar ? `${summary.blood_sugar.value}` : '--', unit: 'mmol/L', indicator: 'blood_sugar_fasting', status: summary.blood_sugar?.status },
+    { label: '体重', value: summary.weight ? `${summary.weight.value}` : '--', unit: 'kg', indicator: 'weight', status: summary.weight?.status },
+  ];
+
   return (
-    <View className='placeholder-page'>
-      <Text className='placeholder-icon'>📊</Text>
-      <Text className='placeholder-title'>健康数据</Text>
-      <Text className='placeholder-desc'>体征录入、趋势分析</Text>
+    <View className='health-page'>
+      <View className='health-header'>
+        <Text className='health-header-title'>健康数据</Text>
+        <View className='health-header-btn' onClick={goToInput}>
+          <Text className='health-header-btn-text'>+ 录入</Text>
+        </View>
+      </View>
+
+      <View className='health-grid'>
+        {items.map((item) => (
+          <View className='health-card' key={item.label} onClick={() => goToTrend(item.indicator)}>
+            <Text className='health-card-label'>{item.label}</Text>
+            <Text className='health-card-value'>{item.value}</Text>
+            <View className='health-card-bottom'>
+              <Text className='health-card-unit'>{item.unit}</Text>
+              {item.status && <Text className='health-card-status'>{item.status}</Text>}
+            </View>
+          </View>
+        ))}
+      </View>
+
+      <View className='health-actions'>
+        <View className='action-card' onClick={() => goToTrend('blood_pressure_systolic')}>
+          <Text className='action-icon'>📈</Text>
+          <Text className='action-label'>血压趋势</Text>
+        </View>
+        <View className='action-card' onClick={() => goToTrend('heart_rate')}>
+          <Text className='action-icon'>❤️</Text>
+          <Text className='action-label'>心率趋势</Text>
+        </View>
+        <View className='action-card' onClick={() => goToTrend('blood_sugar_fasting')}>
+          <Text className='action-icon'>🩸</Text>
+          <Text className='action-label'>血糖趋势</Text>
+        </View>
+      </View>
     </View>
   );
 }
diff --git a/apps/miniprogram/src/pages/health/input/index.scss b/apps/miniprogram/src/pages/health/input/index.scss
new file mode 100644
index 0000000..7e2acd4
--- /dev/null
+++ b/apps/miniprogram/src/pages/health/input/index.scss
@@ -0,0 +1,59 @@
+@import '../../../styles/variables.scss';
+
+.input-page {
+  min-height: 100vh;
+  background: $bg;
+  padding: 24px;
+}
+
+.input-section {
+  margin-bottom: 32px;
+}
+
+.input-label {
+  font-size: 28px;
+  color: $tx;
+  font-weight: bold;
+  margin-bottom: 12px;
+  display: block;
+}
+
+.input-picker {
+  background: $card;
+  border-radius: $r-sm;
+  padding: 20px 24px;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  font-size: 28px;
+  color: $tx;
+}
+
+.picker-arrow {
+  color: $tx3;
+  font-size: 28px;
+}
+
+.input-field {
+  background: $card;
+  border-radius: $r-sm;
+  padding: 20px 24px;
+  font-size: 28px;
+  color: $tx;
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.input-submit {
+  background: $pri;
+  border-radius: $r-sm;
+  padding: 24px;
+  text-align: center;
+  margin-top: 48px;
+}
+
+.submit-text {
+  font-size: 32px;
+  color: white;
+  font-weight: bold;
+}
diff --git a/apps/miniprogram/src/pages/health/input/index.tsx b/apps/miniprogram/src/pages/health/input/index.tsx
new file mode 100644
index 0000000..a64c557
--- /dev/null
+++ b/apps/miniprogram/src/pages/health/input/index.tsx
@@ -0,0 +1,93 @@
+import { useState } from 'react';
+import { View, Text, Input, Picker } from '@tarojs/components';
+import Taro from '@tarojs/taro';
+import { inputVitalSign } from '../../../services/health';
+import { useAuthStore } from '../../../stores/auth';
+import './index.scss';
+
+const INDICATORS = [
+  { value: 'blood_pressure', label: '血压 (mmHg)' },
+  { value: 'heart_rate', label: '心率 (bpm)' },
+  { value: 'blood_sugar_fasting', label: '空腹血糖 (mmol/L)' },
+  { value: 'blood_sugar_postprandial', label: '餐后血糖 (mmol/L)' },
+  { value: 'weight', label: '体重 (kg)' },
+  { value: 'temperature', label: '体温 (℃)' },
+];
+
+export default function HealthInput() {
+  const [indicatorIdx, setIndicatorIdx] = useState(0);
+  const [value, setValue] = useState('');
+  const [note, setNote] = useState('');
+  const [submitting, setSubmitting] = useState(false);
+  const { currentPatient } = useAuthStore();
+
+  const handleSubmit = async () => {
+    if (!value) {
+      Taro.showToast({ title: '请输入数值', icon: 'none' });
+      return;
+    }
+    if (!currentPatient) {
+      Taro.showToast({ title: '请先选择就诊人', icon: 'none' });
+      return;
+    }
+
+    setSubmitting(true);
+    try {
+      await inputVitalSign(currentPatient.id, {
+        indicator_type: INDICATORS[indicatorIdx].value,
+        value: parseFloat(value),
+        note: note || undefined,
+      });
+      Taro.showToast({ title: '录入成功', icon: 'success' });
+      setTimeout(() => Taro.navigateBack(), 1000);
+    } catch (e: any) {
+      Taro.showToast({ title: e.message || '录入失败', icon: 'none' });
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  return (
+    <View className='input-page'>
+      <View className='input-section'>
+        <Text className='input-label'>指标类型</Text>
+        <Picker
+          mode='selector'
+          range={INDICATORS.map((i) => i.label)}
+          value={indicatorIdx}
+          onChange={(e) => setIndicatorIdx(Number(e.detail.value))}
+        >
+          <View className='input-picker'>
+            <Text>{INDICATORS[indicatorIdx].label}</Text>
+            <Text className='picker-arrow'>▾</Text>
+          </View>
+        </Picker>
+      </View>
+
+      <View className='input-section'>
+        <Text className='input-label'>数值</Text>
+        <Input
+          type='digit'
+          className='input-field'
+          placeholder='请输入数值'
+          value={value}
+          onInput={(e) => setValue(e.detail.value)}
+        />
+      </View>
+
+      <View className='input-section'>
+        <Text className='input-label'>备注（可选）</Text>
+        <Input
+          className='input-field'
+          placeholder='如：饭后2小时'
+          value={note}
+          onInput={(e) => setNote(e.detail.value)}
+        />
+      </View>
+
+      <View className='input-submit' onClick={submitting ? undefined : handleSubmit}>
+        <Text className='submit-text'>{submitting ? '提交中...' : '提交'}</Text>
+      </View>
+    </View>
+  );
+}
diff --git a/apps/miniprogram/src/pages/health/trend/index.scss b/apps/miniprogram/src/pages/health/trend/index.scss
new file mode 100644
index 0000000..48a1ad3
--- /dev/null
+++ b/apps/miniprogram/src/pages/health/trend/index.scss
@@ -0,0 +1,122 @@
+@import '../../../styles/variables.scss';
+
+.trend-page {
+  min-height: 100vh;
+  background: $bg;
+}
+
+.trend-header {
+  padding: 24px 32px;
+}
+
+.trend-title {
+  font-size: 34px;
+  font-weight: bold;
+  color: $tx;
+  display: block;
+  margin-bottom: 16px;
+}
+
+.trend-tabs {
+  display: flex;
+  gap: 16px;
+}
+
+.trend-tab {
+  padding: 10px 28px;
+  border-radius: 20px;
+  background: $card;
+}
+
+.trend-tab.active {
+  background: $pri;
+}
+
+.trend-tab-text {
+  font-size: 24px;
+  color: $tx2;
+}
+
+.trend-tab.active .trend-tab-text {
+  color: white;
+}
+
+.trend-chart {
+  margin: 24px;
+  background: $card;
+  border-radius: $r;
+  padding: 24px;
+  min-height: 300px;
+  display: flex;
+  align-items: flex-end;
+}
+
+.trend-empty {
+  font-size: 26px;
+  color: $tx3;
+  text-align: center;
+  width: 100%;
+  align-self: center;
+}
+
+.chart-bars {
+  display: flex;
+  align-items: flex-end;
+  gap: 8px;
+  width: 100%;
+  height: 240px;
+}
+
+.chart-bar-wrap {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  height: 100%;
+  justify-content: flex-end;
+}
+
+.chart-bar {
+  width: 100%;
+  background: linear-gradient(to top, $pri, $pri-l);
+  border-radius: 4px 4px 0 0;
+  min-height: 4px;
+}
+
+.chart-bar-date {
+  font-size: 18px;
+  color: $tx3;
+  margin-top: 6px;
+}
+
+.trend-list {
+  margin: 0 24px;
+}
+
+.trend-item {
+  display: flex;
+  justify-content: space-between;
+  background: $card;
+  padding: 20px 24px;
+  border-bottom: 1px solid $bd-l;
+}
+
+.trend-item:first-child {
+  border-radius: $r $r 0 0;
+}
+
+.trend-item:last-child {
+  border-radius: 0 0 $r $r;
+  border-bottom: none;
+}
+
+.trend-item-date {
+  font-size: 26px;
+  color: $tx2;
+}
+
+.trend-item-value {
+  font-size: 26px;
+  color: $pri;
+  font-weight: bold;
+}
diff --git a/apps/miniprogram/src/pages/health/trend/index.tsx b/apps/miniprogram/src/pages/health/trend/index.tsx
new file mode 100644
index 0000000..ddf151f
--- /dev/null
+++ b/apps/miniprogram/src/pages/health/trend/index.tsx
@@ -0,0 +1,73 @@
+import { useState, useEffect } from 'react';
+import { View, Text } from '@tarojs/components';
+import Taro, { useRouter } from '@tarojs/taro';
+import { useHealthStore } from '../../../stores/health';
+import './index.scss';
+
+const RANGE_OPTIONS = [
+  { value: '7d', label: '7天' },
+  { value: '30d', label: '30天' },
+  { value: '90d', label: '90天' },
+];
+
+export default function Trend() {
+  const router = useRouter();
+  const indicator = router.params.indicator || 'heart_rate';
+  const [range, setRange] = useState('7d');
+  const [points, setPoints] = useState<{ date: string; value: number }[]>([]);
+  const { getTrend } = useHealthStore();
+
+  useEffect(() => {
+    getTrend(indicator, range).then(setPoints);
+  }, [indicator, range]);
+
+  const maxVal = points.length ? Math.max(...points.map((p) => p.value)) : 1;
+
+  return (
+    <View className='trend-page'>
+      <View className='trend-header'>
+        <Text className='trend-title'>{indicator.replace(/_/g, ' ')} 趋势</Text>
+        <View className='trend-tabs'>
+          {RANGE_OPTIONS.map((opt) => (
+            <View
+              key={opt.value}
+              className={`trend-tab ${range === opt.value ? 'active' : ''}`}
+              onClick={() => setRange(opt.value)}
+            >
+              <Text className='trend-tab-text'>{opt.label}</Text>
+            </View>
+          ))}
+        </View>
+      </View>
+
+      {/* 简易柱状图 */}
+      <View className='trend-chart'>
+        {points.length === 0 ? (
+          <Text className='trend-empty'>暂无数据</Text>
+        ) : (
+          <View className='chart-bars'>
+            {points.slice(-14).map((p, i) => (
+              <View className='chart-bar-wrap' key={i}>
+                <View
+                  className='chart-bar'
+                  style={{ height: `${(p.value / maxVal) * 100}%` }}
+                />
+                <Text className='chart-bar-date'>{p.date.slice(5)}</Text>
+              </View>
+            ))}
+          </View>
+        )}
+      </View>
+
+      {/* 数据列表 */}
+      <View className='trend-list'>
+        {points.slice().reverse().map((p, i) => (
+          <View className='trend-item' key={i}>
+            <Text className='trend-item-date'>{p.date}</Text>
+            <Text className='trend-item-value'>{p.value}</Text>
+          </View>
+        ))}
+      </View>
+    </View>
+  );
+}
diff --git a/apps/miniprogram/src/services/health.ts b/apps/miniprogram/src/services/health.ts
new file mode 100644
index 0000000..064f2e2
--- /dev/null
+++ b/apps/miniprogram/src/services/health.ts
@@ -0,0 +1,29 @@
+import { api } from './request';
+
+export interface VitalSignInput {
+  indicator_type: string;
+  value: number;
+  measured_at?: string;
+  note?: string;
+}
+
+export interface TodaySummary {
+  blood_pressure?: { systolic: number; diastolic: number; status: string };
+  heart_rate?: { value: number; status: string };
+  blood_sugar?: { value: number; status: string };
+  weight?: { value: number; status: string };
+}
+
+export async function getTodaySummary() {
+  return api.get<TodaySummary>('/health/vital-signs?date=today');
+}
+
+export async function inputVitalSign(patientId: string, data: VitalSignInput) {
+  return api.post(`/health/patients/${patientId}/vital-signs`, data);
+}
+
+export async function getTrend(indicator: string, range: string) {
+  return api.get<{ indicator: string; data_points: { date: string; value: number }[] }>(
+    `/health/vital-signs/trend?indicator=${indicator}&range=${range}`
+  );
+}
diff --git a/apps/miniprogram/src/stores/health.ts b/apps/miniprogram/src/stores/health.ts
new file mode 100644
index 0000000..e842afc
--- /dev/null
+++ b/apps/miniprogram/src/stores/health.ts
@@ -0,0 +1,41 @@
+import { create } from 'zustand';
+import * as healthApi from '../services/health';
+
+interface HealthState {
+  todaySummary: healthApi.TodaySummary | null;
+  trendData: Record<string, { date: string; value: number }[]>;
+  loading: boolean;
+  refreshToday: () => Promise<void>;
+  getTrend: (indicator: string, range: string) => Promise<{ date: string; value: number }[]>;
+}
+
+export const useHealthStore = create<HealthState>((set, get) => ({
+  todaySummary: null,
+  trendData: {},
+  loading: false,
+
+  refreshToday: async () => {
+    set({ loading: true });
+    try {
+      const data = await healthApi.getTodaySummary();
+      set({ todaySummary: data, loading: false });
+    } catch {
+      set({ loading: false });
+    }
+  },
+
+  getTrend: async (indicator: string, range: string) => {
+    const cacheKey = `${indicator}_${range}`;
+    const cached = get().trendData[cacheKey];
+    if (cached) return cached;
+
+    try {
+      const resp = await healthApi.getTrend(indicator, range);
+      const points = resp.data_points || [];
+      set((s) => ({ trendData: { ...s.trendData, [cacheKey]: points } }));
+      return points;
+    } catch {
+      return [];
+    }
+  },
+}));
diff --git a/crates/erp-health/src/dto/health_data_dto.rs b/crates/erp-health/src/dto/health_data_dto.rs
index a05e527..3ba0ea2 100644
--- a/crates/erp-health/src/dto/health_data_dto.rs
+++ b/crates/erp-health/src/dto/health_data_dto.rs
@@ -121,3 +121,34 @@ pub struct IndicatorTimeseriesResp {
     pub indicator: String,
     pub data: Vec<(NaiveDate, f64)>,
 }
+
+// ---------------------------------------------------------------------------
+// 小程序趋势查询（通过当前用户关联 patient）
+// ---------------------------------------------------------------------------
+
+/// 小程序趋势查询参数
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct MiniTrendQueryParams {
+    /// 指标名称，如 "blood_pressure_systolic", "heart_rate" 等
+    pub indicator: String,
+    /// 时间范围："7d"(默认), "30d", "90d"
+    pub range: Option<String>,
+}
+
+/// 小程序趋势数据点
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct DataPoint {
+    /// 日期，格式 YYYY-MM-DD
+    pub date: String,
+    /// 指标数值
+    pub value: f64,
+}
+
+/// 小程序趋势响应
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct MiniTrendResp {
+    /// 指标名称
+    pub indicator: String,
+    /// 数据点列表（按日期升序）
+    pub data_points: Vec<DataPoint>,
+}
diff --git a/crates/erp-health/src/handler/health_data_handler.rs b/crates/erp-health/src/handler/health_data_handler.rs
index 358d4d3..71fbdd3 100644
--- a/crates/erp-health/src/handler/health_data_handler.rs
+++ b/crates/erp-health/src/handler/health_data_handler.rs
@@ -322,6 +322,27 @@ where
     Ok(Json(ApiResponse::ok(result)))
 }
 
+// ---------------------------------------------------------------------------
+// 小程序趋势查询（通过当前用户关联 patient，无需传 patient_id）
+// ---------------------------------------------------------------------------
+
+pub async fn get_mini_trend<S>(
+    State(state): State<HealthState>,
+    Extension(ctx): Extension<TenantContext>,
+    Query(params): Query<MiniTrendQueryParams>,
+) -> Result<Json<ApiResponse<MiniTrendResp>>, AppError>
+where
+    HealthState: FromRef<S>,
+    S: Clone + Send + Sync + 'static,
+{
+    require_permission(&ctx, "health.health-data.list")?;
+    let result = health_data_service::get_mini_trend(
+        &state, ctx.tenant_id, ctx.user_id, params.indicator, params.range,
+    )
+    .await?;
+    Ok(Json(ApiResponse::ok(result)))
+}
+
 // ---------------------------------------------------------------------------
 // 带版本号的更新请求包装
 // ---------------------------------------------------------------------------
diff --git a/crates/erp-health/src/module.rs b/crates/erp-health/src/module.rs
index e87f35e..00def14 100644
--- a/crates/erp-health/src/module.rs
+++ b/crates/erp-health/src/module.rs
@@ -112,6 +112,11 @@ impl HealthModule {
                 "/health/patients/{id}/trends/{indicator}",
                 axum::routing::get(health_data_handler::get_indicator_timeseries),
             )
+            // 小程序趋势查询（通过 JWT user_id 关联 patient，无需传 patient_id）
+            .route(
+                "/health/vital-signs/trend",
+                axum::routing::get(health_data_handler::get_mini_trend),
+            )
             // 预约排班
             .route(
                 "/health/appointments",
diff --git a/crates/erp-health/src/service/health_data_service.rs b/crates/erp-health/src/service/health_data_service.rs
index 0861061..a5a0d36 100644
--- a/crates/erp-health/src/service/health_data_service.rs
+++ b/crates/erp-health/src/service/health_data_service.rs
@@ -591,3 +591,94 @@ pub async fn get_indicator_timeseries(
 
     Ok(IndicatorTimeseriesResp { indicator, data })
 }
+
+// ---------------------------------------------------------------------------
+// 小程序趋势查询（通过 user_id 关联 patient）
+// ---------------------------------------------------------------------------
+
+/// 根据 user_id 查找关联的 patient_id。
+/// patient 表的 user_id 字段关联 erp-auth 的用户。
+/// 如果未关联则返回 Ok(None)。
+async fn find_patient_by_user_id(
+    state: &HealthState,
+    tenant_id: Uuid,
+    user_id: Uuid,
+) -> HealthResult<Option<Uuid>> {
+    let patient_model = patient::Entity::find()
+        .filter(patient::Column::TenantId.eq(tenant_id))
+        .filter(patient::Column::UserId.eq(user_id))
+        .filter(patient::Column::DeletedAt.is_null())
+        .one(&state.db)
+        .await?;
+
+    Ok(patient_model.map(|p| p.id))
+}
+
+/// 解析 range 参数为天数，默认 7 天。
+/// 支持 "7d", "30d", "90d" 格式。
+fn parse_range_days(range: &Option<String>) -> i64 {
+    match range.as_deref() {
+        Some("30d") => 30,
+        Some("90d") => 90,
+        // 默认 7 天（包括 "7d" 和 None）
+        _ => 7,
+    }
+}
+
+/// 小程序趋势查询：通过当前用户的 user_id 关联 patient，查询指定指标的时间序列。
+///
+/// 逻辑流程：
+/// 1. 解析 range 参数计算 start_date/end_date
+/// 2. 通过 user_id 查找关联的 patient（patient.user_id 字段）
+/// 3. 复用 get_indicator_timeseries 的查询逻辑
+/// 4. 转换为 DataPoint 格式返回
+pub async fn get_mini_trend(
+    state: &HealthState,
+    tenant_id: Uuid,
+    user_id: Uuid,
+    indicator: String,
+    range: Option<String>,
+) -> HealthResult<MiniTrendResp> {
+    // 1. 通过 user_id 查找关联的 patient
+    let patient_id = find_patient_by_user_id(state, tenant_id, user_id).await?;
+
+    // 如果用户未关联 patient，返回空数据
+    let Some(patient_id) = patient_id else {
+        return Ok(MiniTrendResp {
+            indicator,
+            data_points: vec![],
+        });
+    };
+
+    // 2. 根据 range 计算日期范围
+    let days = parse_range_days(&range);
+    let today = chrono::Local::now().date_naive();
+    let start_date = today - chrono::Duration::days(days);
+    let end_date = today;
+
+    // 3. 复用已有逻辑查询时间序列数据
+    let timeseries = get_indicator_timeseries(
+        state,
+        tenant_id,
+        patient_id,
+        indicator.clone(),
+        Some(start_date),
+        Some(end_date),
+    )
+    .await?;
+
+    // 4. 转换为 DataPoint 格式
+    let data_points = timeseries
+        .data
+        .into_iter()
+        .map(|(date, value)| DataPoint {
+            date: date.to_string(),
+            value,
+        })
+        .collect();
+
+    Ok(MiniTrendResp {
+        indicator,
+        data_points,
+    })
+}