A clothes treatment apparatus comprising: a cabinet configured with a front cover forming a front surface and a back cover forming a rear surface, wherein a loading inlet for loading laundry is formed at the front cover; a tub provided inside the cabinet; a drum rotatably provided in the tub and providing a reception space for washing and drying laundry; and a heat pump module configured to circulate a refrigerant to a compressor, a condenser, an expansion valve, and an evaporator, a gas-liquid separator and re-circulate air discharged from the drum to the drum through the evaporator and the condenser, wherein the heat pump module comprises an integrated housing configured to mount the compressor, the condenser, and the evaporator integrally, disposed at an upper part of the tub; and a plurality of fastening members supporting the integrated housing at the front surface and the rear surface of the cabinet, wherein the integrated housing comprises: a heat exchange duct part configured to receive the evaporator and the condenser and connected to the tub to form a flow passage for circulating air discharged from the tub; and a compressor base part configured to be formed integrally with the heat exchange duct part and support the compressor, wherein the plurality of fastening members fasten a front surface of the heat exchange duct part to a front surface of the cabinet and fasten a rear surface of the compressor base part to a rear surface of the cabinet, wherein the gas-liquid separator is provided separated from the compressor at a refrigerant pipe connecting the evaporator and the compressor to separate a liquid refrigerant from a gas refrigerant which is to be moved to compressor, wherein the integrated housing further comprises a gas-liquid separator mounting part configured to be integrally formed of a rear side surface of the heat exchange duct part and one side surface of the compressor base part and mounting the gas-liquid separator. a cabinet configured with a front cover forming a front surface and a back cover forming a rear surface, wherein a loading inlet for loading laundry is formed at the front cover; a tub provided inside the cabinet; a drum rotatably provided in the tub and providing a reception space for washing and drying laundry; and a heat pump module configured to circulate a refrigerant to a compressor, a condenser, an expansion valve, and an evaporator, a gas-liquid separator and re-circulate air discharged from the drum to the drum through the evaporator and the condenser, wherein the heat pump module comprises an integrated housing configured to mount the compressor, the condenser, and the evaporator integrally, disposed at an upper part of the tub; and a plurality of fastening members supporting the integrated housing at the front surface and the rear surface of the cabinet, wherein the integrated housing comprises: a heat exchange duct part configured to receive the evaporator and the condenser and connected to the tub to form a flow passage for circulating air discharged from the tub; and a compressor base part configured to be formed integrally with the heat exchange duct part and support the compressor, wherein the plurality of fastening members fasten a front surface of the heat exchange duct part to a front surface of the cabinet and fasten a rear surface of the compressor base part to a rear surface of the cabinet, wherein the gas-liquid separator is provided separated from the compressor at a refrigerant pipe connecting the evaporator and the compressor to separate a liquid refrigerant from a gas refrigerant which is to be moved to compressor, wherein the integrated housing further comprises a gas-liquid separator mounting part configured to be integrally formed of a rear side surface of the heat exchange duct part and one side surface of the compressor base part and mounting the gas-liquid separator. a heat exchange duct part configured to receive the evaporator and the condenser and connected to the tub to form a flow passage for circulating air discharged from the tub; and a compressor base part configured to be formed integrally with the heat exchange duct part and support the compressor, wherein the plurality of fastening members fasten a front surface of the heat exchange duct part to a front surface of the cabinet and fasten a rear surface of the compressor base part to a rear surface of the cabinet, wherein the gas-liquid separator is provided separated from the compressor at a refrigerant pipe connecting the evaporator and the compressor to separate a liquid refrigerant from a gas refrigerant which is to be moved to compressor, wherein the integrated housing further comprises a gas-liquid separator mounting part configured to be integrally formed of a rear side surface of the heat exchange duct part and one side surface of the compressor base part and mounting the gas-liquid separator.