The invention discloses a server cooling case which comprises a case body. The case body comprises a first side wall, a second side wall, a third side wall and a fourth side wall, the fourth side walland the second side wall are each provided with a liquid outlet, a ventilation window and a liquid inlet, a dustproof ventilation film is arranged on each ventilation window, a suction ventilator isinstalled at the positions, close to ventilation windows, of one side of the fourth side wall and one side of the second side wall, a U-shaped pipe is fixedly arranged on one side of the suction ventilator, a compressor is connected to one end of the U-shaped pipe, the compressor is connected with the air inlets through cooling liquid pipes, a liquid outlet is connected to the other end of the U-shaped pipe, and installing plates are fixedly installed on the two sides of the third side wall. By arranging the suction ventilator, the U-shaped pipe, the compressor and a hair dryer, the case can be effectively cooled, and therefore the phenomenon that use of the server is affected due to the fact that electric devices inside the case are hot excessively is avoided; the case is reliable to useand good in cooling effect.