The invention discloses an automobile sun visor which comprises an automobile sun visor body. A film is connected with the automobile sun visor body, the automobile sun visor body is positioned on theinner side of an automobile and can be connected with an automobile ceiling or a left front upright column of the automobile or a right front upright column of the automobile or an automobile front windshield, the film comprises a first coating and a second coating, the first coating comprises a photochromic coating, the second coating comprises a polarization coating, colors of the film on the automobile sun visor body can be changed by the photochromic coating, light sources which irradiate on the automobile sun visor body can be reduced or offset by the polarization coating, and the irradiance of the light sources can be weakened. The automobile sun visor has the advantages that the automobile sun visor is simple in structure and is combined with the film, the film clings onto the automobile sun visor, accordingly, strong light irradiation of the front vision light sources can be effectively blocked and attenuated, dazzling and irritation on the eyes of drivers of the automobile can be prevented, the drivers can clearly know surrounding road conditions of the automobile, and potential driving safety hazards can be reduced.