Cabinet air-conditioning system

The utility model discloses a cabinet air-conditioning system comprising a cabinet and an air-conditioning machine set. The cabinet comprises at least one device area and at least one machine set area which is arranged at one side of the device area and is for installing the air-conditioning machine set. The air-conditioning machine set is at least partially arranged in the machine set area. The back sides and the front sides of the device area and the machine set area are respectively provided with a cabinet front side plate and a cabinet back side plate. A cabinet separator plate is detachably arranged between the device area and the machine set area. The air-conditioning machine set comprises a blower fan and a heat exchanger, wherein the blower fan is arranged at one side of the heat exchanger. The separator plate, corresponding to the heat exchanger, is provided with a cabinet return air port. The cabinet front side plate or the cabinet separator plate is provided with a cabinet air inlet. When the air-conditioning machine set is arranged inside the cabinet, the air-conditioning machine set carries out refrigeration directly on a server device; compared with a traditional cabinet air-conditioner, the refrigerating efficiency of the air-conditioning system is improved; and installation and maintenance work is done conveniently, and construction cost and material cost can be reduced.