diff --git a/backend/app.py b/backend/app.py
index 4c73bc4..d9f1479 100644
--- a/backend/app.py
+++ b/backend/app.py
@@ -3542,6 +3542,79 @@ def api_products():
         return jsonify({'success': False, 'error': str(e)}), 500
 
 
+# ==================== 위치 정보 API ====================
+
+@app.route('/api/locations')
+def api_get_all_locations():
+    """모든 위치명 목록 조회"""
+    try:
+        drug_session = db_manager.get_session('PM_DRUG')
+        result = drug_session.execute(text("""
+            SELECT DISTINCT CD_NM_sale 
+            FROM CD_item_position 
+            WHERE CD_NM_sale IS NOT NULL AND CD_NM_sale != ''
+            ORDER BY CD_NM_sale
+        """))
+        locations = [row[0] for row in result.fetchall()]
+        return jsonify({
+            'success': True,
+            'locations': locations,
+            'total': len(locations)
+        })
+    except Exception as e:
+        logging.error(f"위치 목록 조회 오류: {e}")
+        return jsonify({'success': False, 'error': str(e)}), 500
+
+
+@app.route('/api/drugs/<drug_code>/location', methods=['PUT'])
+def api_update_drug_location(drug_code):
+    """약품 위치 업데이트"""
+    try:
+        data = request.get_json()
+        location_name = data.get('location_name', '').strip() if data else ''
+        
+        # 위치명 길이 검증 (최대 20자)
+        if location_name and len(location_name) > 20:
+            return jsonify({'success': False, 'error': '위치명은 20자를 초과할 수 없습니다'}), 400
+        
+        drug_session = db_manager.get_session('PM_DRUG')
+        
+        # 기존 레코드 확인
+        existing = drug_session.execute(text("""
+            SELECT DrugCode FROM CD_item_position WHERE DrugCode = :drug_code
+        """), {'drug_code': drug_code}).fetchone()
+        
+        if existing:
+            # UPDATE
+            if location_name:
+                drug_session.execute(text("""
+                    UPDATE CD_item_position SET CD_NM_sale = :location WHERE DrugCode = :drug_code
+                """), {'location': location_name, 'drug_code': drug_code})
+            else:
+                # 빈 값이면 삭제
+                drug_session.execute(text("""
+                    DELETE FROM CD_item_position WHERE DrugCode = :drug_code
+                """), {'drug_code': drug_code})
+        else:
+            # INSERT (위치가 있을 때만)
+            if location_name:
+                drug_session.execute(text("""
+                    INSERT INTO CD_item_position (DrugCode, CD_NM_sale) VALUES (:drug_code, :location)
+                """), {'drug_code': drug_code, 'location': location_name})
+        
+        drug_session.commit()
+        
+        return jsonify({
+            'success': True,
+            'message': '위치 정보가 업데이트되었습니다',
+            'location': location_name
+        })
+        
+    except Exception as e:
+        logging.error(f"위치 업데이트 오류: {e}")
+        return jsonify({'success': False, 'error': str(e)}), 500
+
+
 @app.route('/admin/sales')
 def admin_sales_pos():
     """판매 내역 페이지 (POS 스타일, 거래별 그룹핑)"""
diff --git a/backend/templates/admin_products.html b/backend/templates/admin_products.html
index fd0166e..807bc32 100644
--- a/backend/templates/admin_products.html
+++ b/backend/templates/admin_products.html
@@ -405,7 +405,148 @@
             padding: 3px 8px;
             border-radius: 4px;
             font-weight: 500;
+            cursor: pointer;
+            transition: all 0.15s;
         }
+        .location-badge:hover {
+            background: #fcd34d;
+            transform: scale(1.05);
+        }
+        .location-badge.unset {
+            background: #f1f5f9;
+            color: #94a3b8;
+            border: 1px dashed #cbd5e1;
+        }
+        .location-badge.unset:hover {
+            background: #e2e8f0;
+            border-color: #8b5cf6;
+            color: #7c3aed;
+        }
+
+        /* 위치 모달 */
+        .location-modal {
+            display: none;
+            position: fixed;
+            top: 0; left: 0; right: 0; bottom: 0;
+            background: rgba(0,0,0,0.6);
+            z-index: 2000;
+            align-items: center;
+            justify-content: center;
+            backdrop-filter: blur(4px);
+        }
+        .location-modal.show { display: flex; }
+        .location-modal-content {
+            background: #fff;
+            border-radius: 16px;
+            padding: 24px;
+            max-width: 400px;
+            width: 90%;
+            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
+            animation: modalSlideIn 0.2s ease;
+        }
+        @keyframes modalSlideIn {
+            from { opacity: 0; transform: translateY(-20px); }
+            to { opacity: 1; transform: translateY(0); }
+        }
+        .location-modal-content h3 {
+            margin: 0 0 16px 0;
+            color: #92400e;
+            font-size: 18px;
+            display: flex;
+            align-items: center;
+            gap: 8px;
+        }
+        .location-product-info {
+            background: #fffbeb;
+            border-radius: 8px;
+            padding: 12px;
+            margin-bottom: 16px;
+            border: 1px solid #fef3c7;
+        }
+        .location-product-info .name {
+            font-weight: 600;
+            color: #1e293b;
+            margin-bottom: 4px;
+        }
+        .location-product-info .code {
+            font-size: 12px;
+            color: #94a3b8;
+            font-family: 'JetBrains Mono', monospace;
+        }
+        .location-select-wrapper {
+            margin-bottom: 12px;
+        }
+        .location-select-wrapper label {
+            display: block;
+            font-size: 12px;
+            font-weight: 500;
+            color: #64748b;
+            margin-bottom: 6px;
+        }
+        .location-select {
+            width: 100%;
+            padding: 12px;
+            border: 2px solid #e2e8f0;
+            border-radius: 8px;
+            font-size: 14px;
+            font-family: inherit;
+            background: #fff;
+            cursor: pointer;
+            transition: border-color 0.2s;
+        }
+        .location-select:focus {
+            outline: none;
+            border-color: #f59e0b;
+        }
+        .location-input-wrapper {
+            margin-bottom: 16px;
+        }
+        .location-input-wrapper label {
+            display: block;
+            font-size: 12px;
+            font-weight: 500;
+            color: #64748b;
+            margin-bottom: 6px;
+        }
+        .location-input {
+            width: 100%;
+            padding: 12px;
+            border: 2px solid #e2e8f0;
+            border-radius: 8px;
+            font-size: 14px;
+            font-family: inherit;
+            transition: border-color 0.2s;
+        }
+        .location-input:focus {
+            outline: none;
+            border-color: #f59e0b;
+        }
+        .location-hint {
+            font-size: 11px;
+            color: #94a3b8;
+            margin-top: 6px;
+        }
+        .location-modal-btns {
+            display: flex;
+            gap: 8px;
+            justify-content: flex-end;
+            margin-top: 16px;
+        }
+        .location-modal-btn {
+            padding: 10px 20px;
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            font-weight: 500;
+            font-size: 14px;
+            transition: all 0.15s;
+        }
+        .location-modal-btn.secondary { background: #f1f5f9; color: #64748b; }
+        .location-modal-btn.secondary:hover { background: #e2e8f0; }
+        .location-modal-btn.danger { background: #fef2f2; color: #dc2626; }
+        .location-modal-btn.danger:hover { background: #fee2e2; }
+        .location-modal-btn.primary { background: #f59e0b; color: #fff; }
+        .location-modal-btn.primary:hover { background: #d97706; }
 
         /* ── 가격 ── */
         .price {
@@ -905,7 +1046,9 @@
                 <td>${item.barcode 
                     ? `<span class="code code-barcode">${item.barcode}</span>` 
                     : `<span class="code code-na">없음</span>`}</td>
-                <td>${item.location ? `<span class="location-badge">${escapeHtml(item.location)}</span>` : ''}</td>
+                <td>${item.location 
+                    ? `<span class="location-badge" onclick="openLocationModal('${item.drug_code}', '${escapeHtml(item.product_name)}', '${escapeHtml(item.location)}')">${escapeHtml(item.location)}</span>` 
+                    : `<span class="location-badge unset" onclick="openLocationModal('${item.drug_code}', '${escapeHtml(item.product_name)}', '')">미지정</span>`}</td>
                 <td class="stock ${(item.stock || 0) > 0 ? 'in-stock' : 'out-stock'}">${item.stock || 0}${wsStock}</td>
                 <td class="price">${formatPrice(item.sale_price)}</td>
                 <td>
@@ -1402,5 +1545,124 @@
             </div>
         </div>
     </div>
+
+    <!-- 위치 편집 모달 -->
+    <div class="location-modal" id="locationModal">
+        <div class="location-modal-content">
+            <h3>📍 위치 설정</h3>
+            <div class="location-product-info">
+                <div class="name" id="locModalProductName">제품명</div>
+                <div class="code" id="locModalDrugCode">상품코드</div>
+            </div>
+            
+            <div class="location-select-wrapper">
+                <label>기존 위치에서 선택</label>
+                <select class="location-select" id="locationSelect" onchange="onLocationSelectChange()">
+                    <option value="">-- 선택하세요 --</option>
+                </select>
+            </div>
+            
+            <div class="location-input-wrapper">
+                <label>또는 직접 입력</label>
+                <input type="text" class="location-input" id="locationInput" 
+                       placeholder="예: 진열대1-3, 냉장고, 창고A" maxlength="20">
+                <div class="location-hint">최대 20자 / 새 위치를 입력하면 목록에 추가됩니다</div>
+            </div>
+            
+            <div class="location-modal-btns">
+                <button class="location-modal-btn danger" onclick="clearLocation()" id="locClearBtn" style="display:none;">삭제</button>
+                <div style="flex:1;"></div>
+                <button class="location-modal-btn secondary" onclick="closeLocationModal()">취소</button>
+                <button class="location-modal-btn primary" onclick="saveLocation()">저장</button>
+            </div>
+        </div>
+    </div>
+
+    <script>
+    // ── 위치 모달 ──
+    let locModalDrugCode = null;
+    let locModalCurrentLocation = null;
+    let allLocations = [];
+
+    async function openLocationModal(drugCode, productName, currentLocation) {
+        locModalDrugCode = drugCode;
+        locModalCurrentLocation = currentLocation;
+        
+        document.getElementById('locModalProductName').textContent = productName;
+        document.getElementById('locModalDrugCode').textContent = drugCode;
+        document.getElementById('locationInput').value = currentLocation || '';
+        
+        // 삭제 버튼 표시 (현재 위치가 있을 때만)
+        document.getElementById('locClearBtn').style.display = currentLocation ? 'block' : 'none';
+        
+        // 위치 목록 로드
+        try {
+            const res = await fetch('/api/locations');
+            const data = await res.json();
+            if (data.success) {
+                allLocations = data.locations || [];
+                const select = document.getElementById('locationSelect');
+                select.innerHTML = '<option value="">-- 선택하세요 --</option>' +
+                    allLocations.map(loc => 
+                        `<option value="${escapeHtml(loc)}" ${loc === currentLocation ? 'selected' : ''}>${escapeHtml(loc)}</option>`
+                    ).join('');
+            }
+        } catch (e) {
+            console.error('위치 목록 로드 실패:', e);
+        }
+        
+        document.getElementById('locationModal').classList.add('show');
+        document.getElementById('locationInput').focus();
+    }
+
+    function closeLocationModal() {
+        document.getElementById('locationModal').classList.remove('show');
+        locModalDrugCode = null;
+        locModalCurrentLocation = null;
+    }
+
+    function onLocationSelectChange() {
+        const selected = document.getElementById('locationSelect').value;
+        if (selected) {
+            document.getElementById('locationInput').value = selected;
+        }
+    }
+
+    async function saveLocation() {
+        const newLocation = document.getElementById('locationInput').value.trim();
+        
+        if (!locModalDrugCode) return;
+        
+        try {
+            const res = await fetch(`/api/drugs/${locModalDrugCode}/location`, {
+                method: 'PUT',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ location_name: newLocation })
+            });
+            const data = await res.json();
+            
+            if (data.success) {
+                showToast(newLocation ? `✅ 위치가 "${newLocation}"(으)로 설정되었습니다` : '✅ 위치가 삭제되었습니다', 'success');
+                closeLocationModal();
+                searchProducts(); // 테이블 새로고침
+            } else {
+                showToast(data.error || '저장 실패', 'error');
+            }
+        } catch (e) {
+            showToast('오류: ' + e.message, 'error');
+        }
+    }
+
+    async function clearLocation() {
+        if (!confirm('위치 정보를 삭제하시겠습니까?')) return;
+        document.getElementById('locationInput').value = '';
+        await saveLocation();
+    }
+
+    // 모달 외부 클릭 시 닫기
+    document.getElementById('locationModal')?.addEventListener('click', e => {
+        if (e.target.id === 'locationModal') closeLocationModal();
+    });
+    </script>
 </body>
 </html>