The invention discloses an air cooling device for a new energy battery, which includes a work box, a fixing plate is arranged on the top of the work box, and the fixing plate is tightly welded with the work box, the inner side of the work box is provided with a battery fixing seat, a suction fan suction outlet and a blow fan outlet are arranged through that top of the battery fix seat, a telescopic rod is arranged at the bottom of the battery fixing seat, a telescopic spring is fixed on the side of the telescopic rod, and the telescopic spring is in a compressed state, a fixed bar is arrangedat the bottom of the telescopic bar, and the fixing rod is connected with the battery fixing seat through the telescopic rod, the side of the work box is provided with an air inlet, a machine box is fixed at the bottom of the work box, a conductor is arranged through one side of the chassis, one side of the chassis is connected with a fixed plug through a wire, the side of the fixed plug is fixedwith a plug piece, and a driving rotating machine is arranged inside the chassis. The device achieves the purpose of improving the cooling effect of the device and facilitating the disassembly and assembly of a new energy battery through a blowing fan, an air suction fan, a telescopic rod and a telescopic spring, etc.