diff --git a/backend/app.py b/backend/app.py
index 7ae0edc..e3f8f7d 100644
--- a/backend/app.py
+++ b/backend/app.py
@@ -1621,7 +1621,38 @@ def admin_user_detail(user_id):
         except Exception as interest_error:
             logging.warning(f"관심상품 조회 실패 (user {user_id}): {interest_error}")
 
-        # 8. 응답 생성
+        # 8. 반려동물 조회
+        pets = []
+        try:
+            cursor.execute("""
+                SELECT id, name, species, breed, gender, birth_date, age_months, 
+                       weight, photo_url, notes, created_at
+                FROM pets
+                WHERE user_id = ? AND is_active = TRUE
+                ORDER BY created_at DESC
+            """, (user_id,))
+            for row in cursor.fetchall():
+                species_label = '강아지 🐕' if row['species'] == 'dog' else ('고양이 🐈' if row['species'] == 'cat' else '기타')
+                gender_label = '♂ 남아' if row['gender'] == 'male' else ('♀ 여아' if row['gender'] == 'female' else '')
+                pets.append({
+                    'id': row['id'],
+                    'name': row['name'],
+                    'species': row['species'],
+                    'species_label': species_label,
+                    'breed': row['breed'],
+                    'gender': row['gender'],
+                    'gender_label': gender_label,
+                    'birth_date': row['birth_date'],
+                    'age_months': row['age_months'],
+                    'weight': float(row['weight']) if row['weight'] else None,
+                    'photo_url': row['photo_url'],
+                    'notes': row['notes'],
+                    'created_at': utc_to_kst_str(row['created_at'])
+                })
+        except Exception as pet_error:
+            logging.warning(f"반려동물 조회 실패 (user {user_id}): {pet_error}")
+
+        # 9. 응답 생성
         return jsonify({
             'success': True,
             'user': {
@@ -1647,7 +1678,8 @@ def admin_user_detail(user_id):
             'purchases': purchases,
             'prescriptions': prescriptions,
             'pos_customer': pos_customer,
-            'interests': interests
+            'interests': interests,
+            'pets': pets
         })
 
     except Exception as e:
diff --git a/backend/static/uploads/pets/pet_2_9919f990.jpg b/backend/static/uploads/pets/pet_2_9919f990.jpg
new file mode 100644
index 0000000..978bd7f
Binary files /dev/null and b/backend/static/uploads/pets/pet_2_9919f990.jpg differ
diff --git a/backend/static/uploads/pets/pet_3_53b73509.png b/backend/static/uploads/pets/pet_3_53b73509.png
new file mode 100644
index 0000000..8744122
Binary files /dev/null and b/backend/static/uploads/pets/pet_3_53b73509.png differ
diff --git a/backend/templates/admin.html b/backend/templates/admin.html
index bf0dbf5..d74b6a9 100644
--- a/backend/templates/admin.html
+++ b/backend/templates/admin.html
@@ -913,6 +913,9 @@
                     <button onclick="switchTab('interests')" id="tab-interests" 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;">
                         💝 관심 (${data.interests ? data.interests.length : 0})
                     </button>
+                    <button onclick="switchTab('pets')" id="tab-pets" class="tab-btn" style="padding: 12px 20px; border: none; background: none; font-size: 15px; font-weight: 600; cursor: pointer; border-bottom: 3px solid transparent; color: #868e96;">
+                        🐾 반려동물 (${data.pets ? data.pets.length : 0})
+                    </button>
                 </div>
 
                 <!-- 정렬 버튼 (구매 이력용) -->
@@ -1070,6 +1073,53 @@
                 html += '<p style="text-align: center; padding: 40px; color: #868e96;">💝 관심 상품이 없습니다<br><small>마일리지 적립 시 AI 추천에서 "관심있어요"를 누르면 여기에 표시됩니다</small></p>';
             }
 
+            html += `
+                </div>
+
+                <!-- 반려동물 탭 -->
+                <div id="tab-content-pets" class="tab-content" style="display: none;">
+            `;
+
+            // 반려동물 렌더링
+            const pets = data.pets || [];
+            if (pets.length > 0) {
+                html += '<div style="display: grid; gap: 16px;">';
+                pets.forEach(pet => {
+                    const photoHtml = pet.photo_url 
+                        ? `<img src="${pet.photo_url}" alt="${pet.name}" style="width: 80px; height: 80px; border-radius: 50%; object-fit: cover;">`
+                        : `<div style="width: 80px; height: 80px; border-radius: 50%; background: linear-gradient(135deg, #fbbf24, #f59e0b); display: flex; align-items: center; justify-content: center; font-size: 36px;">${pet.species === 'dog' ? '🐕' : (pet.species === 'cat' ? '🐈' : '🐾')}</div>`;
+                    
+                    html += `
+                        <div style="border: 1px solid #e9ecef; border-radius: 16px; padding: 20px; display: flex; gap: 20px; align-items: center; border-left: 4px solid #f59e0b;">
+                            <div style="flex-shrink: 0;">
+                                ${photoHtml}
+                            </div>
+                            <div style="flex: 1;">
+                                <div style="display: flex; align-items: center; gap: 10px; margin-bottom: 8px;">
+                                    <span style="font-size: 20px; font-weight: 700; color: #212529;">${pet.name}</span>
+                                    <span style="background: ${pet.species === 'dog' ? '#dbeafe' : '#fce7f3'}; color: ${pet.species === 'dog' ? '#1e40af' : '#9d174d'}; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 20px;">
+                                        ${pet.species_label}
+                                    </span>
+                                </div>
+                                <div style="display: flex; flex-wrap: wrap; gap: 12px; font-size: 14px; color: #6b7280;">
+                                    ${pet.breed ? `<span>🏷️ ${pet.breed}</span>` : ''}
+                                    ${pet.gender_label ? `<span>${pet.gender_label}</span>` : ''}
+                                    ${pet.weight ? `<span>⚖️ ${pet.weight}kg</span>` : ''}
+                                    ${pet.age_months ? `<span>🎂 ${pet.age_months}개월</span>` : ''}
+                                </div>
+                                ${pet.notes ? `<div style="margin-top: 8px; font-size: 13px; color: #9ca3af; background: #f9fafb; padding: 8px 12px; border-radius: 8px;">📝 ${pet.notes}</div>` : ''}
+                                <div style="margin-top: 10px; font-size: 12px; color: #d1d5db;">
+                                    등록일: ${pet.created_at}
+                                </div>
+                            </div>
+                        </div>
+                    `;
+                });
+                html += '</div>';
+            } else {
+                html += '<p style="text-align: center; padding: 40px; color: #868e96;">🐾 등록된 반려동물이 없습니다<br><small>고객이 마이페이지에서 반려동물을 등록하면 여기에 표시됩니다</small></p>';
+            }
+
             html += `
                 </div>
             `;
@@ -1727,6 +1777,13 @@
         // KIMS 약물 상호작용 체크
         // ═══════════════════════════════════════════════════
         
+        function escapeHtml(text) {
+            if (!text) return '';
+            const div = document.createElement('div');
+            div.textContent = text;
+            return div.innerHTML;
+        }
+        
         async function checkDrugInteraction(drugCodes, preSerial) {
             // drugCodes가 문자열로 넘어올 수 있음
             if (typeof drugCodes === 'string') {