HEAT MANAGEMENT SYSTEM

The present invention relates to a heat management system comprising: a refrigerant circulation line including a compressor, a compressor for compressing and discharging a refrigerant, a water cooling-type condenser for condensing the compressed refrigerant using cooling water, a first expansion valve for expanding the condensed refrigerant, and a water cooling-type evaporator for evaporating the expanded refrigerant using cooling water; a heating line including a heater core which circulates the cooling water that has exchanged heat in the water cooling-type condenser, and thereby generates conditioned air for heating; a cooling line () including a cabin cooler () which circulates the cooling water that has exchanged heat in the water cooling-type evaporator (), and thereby generates conditioned air for cooling; and a cooling line () which is connected to or disconnected from the heating line according to the cooling/heating mode, and cools a battery () and an electrical component (). The heat management system enables efficient heat management of an electrical component and a battery in a vehicle, in addition to the cooling and heating of the vehicle, and can improve heat pump performance and system efficiency.