diff --git a/src/family/services/moodService.ts b/src/family/services/moodService.ts
new file mode 100644
index 0000000..93a043c
--- /dev/null
+++ b/src/family/services/moodService.ts
@@ -0,0 +1,271 @@
+/**
+ * 家属端情绪记录服务
+ * 负责查询老人的情绪记录和统计数据
+ */
+
+const API_BASE_URL = 'http://localhost:8000/api';
+
+export type MoodType = 'happy' | 'calm' | 'sad' | 'anxious' | 'angry' | 'tired';
+
+export interface MoodRecord {
+  id?: number;
+  family_id: string;
+  elderly_id?: number;
+  elderly_name?: string;
+  mood_type: MoodType;
+  mood_score: number;
+  note?: string;
+  source?: 'manual' | 'ai_detect' | 'voice';
+  trigger_event?: string;
+  location?: string;
+  weather?: string;
+  recorded_at?: string;
+  created_at?: string;
+}
+
+export interface MoodRecordResponse {
+  records: MoodRecord[];
+  total: number;
+  limit: number;
+  offset: number;
+}
+
+export interface MoodTypeStats {
+  mood_type: MoodType;
+  count: number;
+  avg_score: number;
+}
+
+export interface DailyStats {
+  date: string;
+  avg_score: number;
+  count: number;
+}
+
+export interface MoodStatsResponse {
+  mood_type_stats: MoodTypeStats[];
+  daily_stats: DailyStats[];
+  overall: {
+    total_records: number;
+    avg_score: number;
+    max_score: number;
+    min_score: number;
+  };
+  today_count: number;
+  days: number;
+}
+
+export interface TrendItem {
+  date: string;
+  mood_type: MoodType;
+  avg_score: number;
+  count: number;
+}
+
+export interface MoodTrendResponse {
+  trend: TrendItem[];
+  days: number;
+}
+
+/**
+ * 情绪类型对应的中文名称
+ */
+export const moodLabelMap: Record<MoodType, string> = {
+  happy: '开心',
+  calm: '平静',
+  sad: '难过',
+  anxious: '焦虑',
+  angry: '生气',
+  tired: '疲惫',
+};
+
+/**
+ * 情绪类型对应的emoji
+ */
+export const moodEmojiMap: Record<MoodType, string> = {
+  happy: '😊',
+  calm: '😌',
+  sad: '😔',
+  anxious: '😰',
+  angry: '😠',
+  tired: '😫',
+};
+
+/**
+ * 情绪类型对应的颜色
+ */
+export const moodColorMap: Record<MoodType, string> = {
+  happy: '#22c55e',  // green-500
+  calm: '#3b82f6',   // blue-500
+  sad: '#eab308',    // yellow-500
+  anxious: '#f97316', // orange-500
+  angry: '#ef4444',  // red-500
+  tired: '#8b5cf6',  // violet-500
+};
+
+/**
+ * 获取家庭情绪记录
+ */
+export async function getFamilyMoods(
+  familyId: string,
+  options?: {
+    elderlyId?: number;
+    moodType?: MoodType;
+    startDate?: string;
+    endDate?: string;
+    limit?: number;
+    offset?: number;
+  }
+): Promise<MoodRecordResponse> {
+  try {
+    const params = new URLSearchParams({
+      family_id: familyId,
+    });
+
+    if (options?.elderlyId) {
+      params.append('elderly_id', options.elderlyId.toString());
+    }
+    if (options?.moodType) {
+      params.append('mood_type', options.moodType);
+    }
+    if (options?.startDate) {
+      params.append('start_date', options.startDate);
+    }
+    if (options?.endDate) {
+      params.append('end_date', options.endDate);
+    }
+    if (options?.limit) {
+      params.append('limit', options.limit.toString());
+    }
+    if (options?.offset) {
+      params.append('offset', options.offset.toString());
+    }
+
+    const response = await fetch(`${API_BASE_URL}/family/moods?${params}`);
+
+    if (!response.ok) {
+      throw new Error(`获取情绪记录失败: ${response.statusText}`);
+    }
+
+    return await response.json();
+  } catch (error) {
+    console.error('获取家庭情绪记录错误:', error);
+    throw error;
+  }
+}
+
+/**
+ * 获取情绪统计数据
+ */
+export async function getMoodStats(
+  familyId: string,
+  options?: {
+    elderlyId?: number;
+    days?: number;
+  }
+): Promise<MoodStatsResponse> {
+  try {
+    const params = new URLSearchParams({
+      family_id: familyId,
+    });
+
+    if (options?.elderlyId) {
+      params.append('elderly_id', options.elderlyId.toString());
+    }
+    if (options?.days) {
+      params.append('days', options.days.toString());
+    }
+
+    const response = await fetch(`${API_BASE_URL}/family/moods/stats?${params}`);
+
+    if (!response.ok) {
+      throw new Error(`获取情绪统计失败: ${response.statusText}`);
+    }
+
+    return await response.json();
+  } catch (error) {
+    console.error('获取情绪统计错误:', error);
+    throw error;
+  }
+}
+
+/**
+ * 获取情绪趋势数据
+ */
+export async function getMoodTrend(
+  familyId: string,
+  options?: {
+    elderlyId?: number;
+    days?: number;
+  }
+): Promise<MoodTrendResponse> {
+  try {
+    const params = new URLSearchParams({
+      family_id: familyId,
+    });
+
+    if (options?.elderlyId) {
+      params.append('elderly_id', options.elderlyId.toString());
+    }
+    if (options?.days) {
+      params.append('days', options.days.toString());
+    }
+
+    const response = await fetch(`${API_BASE_URL}/family/moods/trend?${params}`);
+
+    if (!response.ok) {
+      throw new Error(`获取情绪趋势失败: ${response.statusText}`);
+    }
+
+    return await response.json();
+  } catch (error) {
+    console.error('获取情绪趋势错误:', error);
+    throw error;
+  }
+}
+
+/**
+ * 格式化情绪分数为描述
+ */
+export function formatMoodScore(score: number): string {
+  if (score >= 8) return '非常好';
+  if (score >= 6) return '良好';
+  if (score >= 4) return '一般';
+  if (score >= 2) return '较差';
+  return '很差';
+}
+
+/**
+ * 获取情绪分数对应的颜色
+ */
+export function getMoodScoreColor(score: number): string {
+  if (score >= 8) return '#22c55e';  // green
+  if (score >= 6) return '#3b82f6';  // blue
+  if (score >= 4) return '#eab308';  // yellow
+  if (score >= 2) return '#f97316';  // orange
+  return '#ef4444';  // red
+}
+
+/**
+ * 格式化时间为易读格式
+ */
+export function formatRecordTime(timeString: string): string {
+  const date = new Date(timeString);
+  const now = new Date();
+  const diff = now.getTime() - date.getTime();
+  const minutes = Math.floor(diff / 60000);
+  const hours = Math.floor(diff / 3600000);
+  const days = Math.floor(diff / 86400000);
+
+  if (minutes < 1) return '刚刚';
+  if (minutes < 60) return `${minutes}分钟前`;
+  if (hours < 24) return `${hours}小时前`;
+  if (days < 7) return `${days}天前`;
+
+  return date.toLocaleDateString('zh-CN', {
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+  });
+}