Rearview mirror mask and preparation process thereof

The invention relates to a rearview mirror mask which comprises a mask and a transparent element convenient for light rays emitted by a turning light to penetrate through the mask, wherein the outer surface of the mask is provided with a notch, and the transparent element is arranged at the notch of the mask and connected with the mask into a whole by a sealing way. The rearview mirror mask can be prepared by two methods, wherein one method is realized in such a way that two injector ports and two pouring channels are arranged in a same mould, two materials are simultaneously used for injection molding the mask and the transparent element, and after being cooled, the injection molded materials are demoulded to obtain the rearview mirror mask; while the other method is realized in such a way that the transparent element is molded firstly, and then the molded transparent element is arranged in a mask injection molding mould as an embedded piece; a mask molding material is injected into the mould, and after bein