diff --git a/backend/app.py b/backend/app.py
index 6d9815d..acfcd52 100644
--- a/backend/app.py
+++ b/backend/app.py
@@ -1387,7 +1387,68 @@ def admin_user_detail(user_id):
             print(f"[WARNING] MSSQL 조회 실패 (user {user_id}): {mssql_error}")
             purchases = []
 
-        # 6. 응답 생성
+        # 6. 조제 이력 조회 (전화번호 → CUSCODE → PS_main)
+        prescriptions = []
+        pos_customer = None
+        if user['phone']:
+            try:
+                phone_clean = user['phone'].replace('-', '').replace(' ', '')
+                base_session = db_manager.get_session('PM_BASE')
+                pres_session = db_manager.get_session('PM_PRES')
+
+                # 전화번호로 CUSCODE 조회
+                cuscode_query = text("""
+                    SELECT TOP 1 CUSCODE, PANAME
+                    FROM CD_PERSON
+                    WHERE REPLACE(REPLACE(PHONE, '-', ''), ' ', '') = :phone
+                       OR REPLACE(REPLACE(TEL_NO, '-', ''), ' ', '') = :phone
+                       OR REPLACE(REPLACE(PHONE2, '-', ''), ' ', '') = :phone
+                """)
+                cus_row = base_session.execute(cuscode_query, {'phone': phone_clean}).fetchone()
+
+                if cus_row:
+                    cuscode = cus_row.CUSCODE
+                    pos_customer = {'cuscode': cuscode, 'name': cus_row.PANAME}
+
+                    # 조제 이력 조회
+                    rx_query = text("""
+                        SELECT TOP 30
+                            P.PreSerial, P.Indate, P.Paname, P.Drname, P.OrderName, P.TDAYS
+                        FROM PS_main P
+                        WHERE P.CusCode = :cuscode
+                        ORDER BY P.Indate DESC, P.PreSerial DESC
+                    """)
+                    rxs = pres_session.execute(rx_query, {'cuscode': cuscode}).fetchall()
+
+                    for rx in rxs:
+                        # 처방 품목 조회
+                        items_query = text("""
+                            SELECT S.DrugCode, G.GoodsName, S.Days, S.QUAN, S.QUAN_TIME
+                            FROM PS_sub_pharm S
+                            LEFT JOIN PM_DRUG.dbo.CD_GOODS G ON S.DrugCode = G.DrugCode
+                            WHERE S.PreSerial = :pre_serial
+                        """)
+                        items = pres_session.execute(items_query, {'pre_serial': rx.PreSerial}).fetchall()
+
+                        prescriptions.append({
+                            'pre_serial': rx.PreSerial,
+                            'date': rx.Indate,
+                            'patient_name': rx.Paname,
+                            'doctor': rx.Drname,
+                            'hospital': rx.OrderName,
+                            'total_days': rx.TDAYS,
+                            'items': [{
+                                'drug_code': item.DrugCode,
+                                'name': item.GoodsName or '알 수 없음',
+                                'days': float(item.Days) if item.Days else 0,
+                                'quantity': float(item.QUAN) if item.QUAN else 0,
+                                'times_per_day': float(item.QUAN_TIME) if item.QUAN_TIME else 0
+                            } for item in items]
+                        })
+            except Exception as rx_error:
+                logging.warning(f"조제 이력 조회 실패 (user {user_id}): {rx_error}")
+
+        # 7. 응답 생성
         return jsonify({
             'success': True,
             'user': {
@@ -1409,7 +1470,9 @@ def admin_user_detail(user_id):
                 }
                 for ml in mileage_history
             ],
-            'purchases': purchases
+            'purchases': purchases,
+            'prescriptions': prescriptions,
+            'pos_customer': pos_customer
         })
 
     except Exception as e:
diff --git a/backend/templates/admin.html b/backend/templates/admin.html
index 8c29a67..91069ff 100644
--- a/backend/templates/admin.html
+++ b/backend/templates/admin.html
@@ -896,10 +896,13 @@
                 <!-- 탭 메뉴 -->
                 <div style="display: flex; gap: 16px; margin-bottom: 16px; border-bottom: 2px solid #e9ecef;">
                     <button onclick="switchTab('purchases')" id="tab-purchases" class="tab-btn" style="padding: 12px 20px; border: none; background: none; font-size: 15px; font-weight: 600; cursor: pointer; border-bottom: 3px solid #6366f1; color: #6366f1;">
-                        구매 이력 (${purchases.length})
+                        🛒 구매 (${purchases.length})
                     </button>
                     <button onclick="switchTab('mileage')" id="tab-mileage" class="tab-btn" style="padding: 12px 20px; border: none; background: none; font-size: 15px; font-weight: 600; cursor: pointer; border-bottom: 3px solid transparent; color: #868e96;">
-                        적립 이력 (${mileageHistory.length})
+                        💰 적립 (${mileageHistory.length})
+                    </button>
+                    <button onclick="switchTab('prescriptions')" id="tab-prescriptions" class="tab-btn" style="padding: 12px 20px; border: none; background: none; font-size: 15px; font-weight: 600; cursor: pointer; border-bottom: 3px solid transparent; color: #868e96;">
+                        💊 조제 (${data.prescriptions ? data.prescriptions.length : 0})
                     </button>
                 </div>
 
@@ -956,6 +959,56 @@
                 html += '<p style="text-align: center; padding: 40px; color: #868e96;">적립 이력이 없습니다.</p>';
             }
 
+            html += `
+                </div>
+
+                <!-- 조제 이력 탭 -->
+                <div id="tab-content-prescriptions" class="tab-content" style="display: none;">
+            `;
+
+            // 조제 이력 렌더링
+            const prescriptions = data.prescriptions || [];
+            if (prescriptions.length > 0) {
+                prescriptions.forEach(rx => {
+                    // 날짜 포맷
+                    const dateStr = rx.date || '';
+                    let formattedDate = dateStr;
+                    if (dateStr.length === 8) {
+                        formattedDate = `${dateStr.slice(0,4)}.${dateStr.slice(4,6)}.${dateStr.slice(6,8)}`;
+                    }
+
+                    // 처방 품목
+                    const itemsHtml = (rx.items || []).map(item => {
+                        const dosage = item.quantity || 1;
+                        const freq = item.times_per_day || 1;
+                        const days = item.days || 0;
+                        return `
+                            <div style="display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid #f1f3f5;">
+                                <span style="color: #495057; font-size: 14px;">${item.name}</span>
+                                <span style="color: #6366f1; font-size: 13px; font-weight: 600;">${dosage}정 × ${freq}회 × ${days}일</span>
+                            </div>
+                        `;
+                    }).join('');
+
+                    html += `
+                        <div style="border: 1px solid #e9ecef; border-radius: 12px; margin-bottom: 12px; padding: 16px; border-left: 4px solid #6366f1;">
+                            <div style="display: flex; justify-content: space-between; margin-bottom: 8px;">
+                                <span style="font-size: 15px; font-weight: 600; color: #212529;">📅 ${formattedDate}</span>
+                                <span style="font-size: 13px; color: #6366f1; font-weight: 600;">${rx.total_days || ''}일분</span>
+                            </div>
+                            <div style="font-size: 13px; color: #64748b; margin-bottom: 12px;">
+                                🏥 ${rx.hospital || ''} · ${rx.doctor || ''}
+                            </div>
+                            ${rx.items && rx.items.length > 0 ? `<div style="background: #f8f9fa; border-radius: 8px; padding: 12px;">${itemsHtml}</div>` : ''}
+                        </div>
+                    `;
+                });
+            } else if (!data.pos_customer) {
+                html += '<p style="text-align: center; padding: 40px; color: #868e96;">📭 POS 회원으로 등록되지 않았습니다<br><small>전화번호가 POS에 등록되면 조제 이력이 표시됩니다</small></p>';
+            } else {
+                html += '<p style="text-align: center; padding: 40px; color: #868e96;">📭 조제 이력이 없습니다</p>';
+            }
+
             html += `
                 </div>
             `;