An axial magnetic field motor, comprising a stator iron core (200a, 200b, 200c, 200d, 300e) and a cooling system for cooling the stator iron core (200a, 200b, 200c, 200d, 300e), wherein said cooling system comprises a housing (100a, 100b, 100c, 101d, 100e) and an enclosed chamber for containing the stator iron core (200a, 200b, 200c, 200d, 300e), wherein the housing (100a, 100b, 100c, 101d, 100e) comprises: a stator casing (101a, 101b) surrounding a circumferential surface of the stator iron core (200a, 200b, 200c, 200d, 300e); an upper cover plate (102a, 102b) and a lower cover plate (103a, 103b) that close two ends of the stator casing (101a, 101b); and an intermediate shaft sleeve (104a, 104b) located in the middle of the stator casing (101a, 101b), wherein the stator casing (101a, 101b), the upper cover plate (102a, 102b), the lower cover plate (103a, 103b) and the intermediate shaft sleeve (104a, 104b) together define the enclosed chamber, the cooling system is characterized in that, the cooling system further comprises: a liquid spraying cavity (500a, 500b) for containing liquid, which is provided on the housing (100a, 100b, 100c, 101d, 100e); a liquid inlet (300a, 300b) communicating with the liquid spraying cavity (500a, 500b); a liquid outlet (400a, 400b) communicating with the enclosed chamber; and a liquid spraying component (600a, 600b) provided on an inner wall of the housing (100a, 100b, 100c, 101d, 100e), which corresponds to the stator iron core (200a, 200b, 200c, 200d, 300e), two first spoilers (700a, 700b) are provided on an inner wall of the stator casing (101a, 101b); an area of the enclosed chamber, which is close to the liquid outlet (400a, 400b), is separated as a liquid return area by the first spoilers (700a, 700b), and an area of the enclosed chamber close to the liquid spraying component (600a, 600b) is separated as a liquid spraying area, the two first spoilers (700a, 700b) are respectively located on two sides of the liquid outlet (400a, 400b). a stator casing (101a, 101b) surrounding a circumferential surface of the stator iron core (200a, 200b, 200c, 200d, 300e); an upper cover plate (102a, 102b) and a lower cover plate (103a, 103b) that close two ends of the stator casing (101a, 101b); and an intermediate shaft sleeve (104a, 104b) located in the middle of the stator casing (101a, 101b), wherein the stator casing (101a, 101b), the upper cover plate (102a, 102b), the lower cover plate (103a, 103b) and the intermediate shaft sleeve (104a, 104b) together define the enclosed chamber, the cooling system is characterized in that, the cooling system further comprises: a liquid spraying cavity (500a, 500b) for containing liquid, which is provided on the housing (100a, 100b, 100c, 101d, 100e); a liquid inlet (300a, 300b) communicating with the liquid spraying cavity (500a, 500b); a liquid outlet (400a, 400b) communicating with the enclosed chamber; and a liquid spraying component (600a, 600b) provided on an inner wall of the housing (100a, 100b, 100c, 101d, 100e), which corresponds to the stator iron core (200a, 200b, 200c, 200d, 300e), two first spoilers (700a, 700b) are provided on an inner wall of the stator casing (101a, 101b); an area of the enclosed chamber, which is close to the liquid outlet (400a, 400b), is separated as a liquid return area by the first spoilers (700a, 700b), and an area of the enclosed chamber close to the liquid spraying component (600a, 600b) is separated as a liquid spraying area, the two first spoilers (700a, 700b) are respectively located on two sides of the liquid outlet (400a, 400b). a liquid spraying cavity (500a, 500b) for containing liquid, which is provided on the housing (100a, 100b, 100c, 101d, 100e); a liquid inlet (300a, 300b) communicating with the liquid spraying cavity (500a, 500b); a liquid outlet (400a, 400b) communicating with the enclosed chamber; and a liquid spraying component (600a, 600b) provided on an inner wall of the housing (100a, 100b, 100c, 101d, 100e), which corresponds to the stator iron core (200a, 200b, 200c, 200d, 300e), two first spoilers (700a, 700b) are provided on an inner wall of the stator casing (101a, 101b); an area of the enclosed chamber, which is close to the liquid outlet (400a, 400b), is separated as a liquid return area by the first spoilers (700a, 700b), and an area of the enclosed chamber close to the liquid spraying component (600a, 600b) is separated as a liquid spraying area, the two first spoilers (700a, 700b) are respectively located on two sides of the liquid outlet (400a, 400b).