The utility model relates to the technical field of automobile electrical appliances, in particular to an automobile rearview mirror wiper, which comprises a main housing, wherein the lower end of the main housing is hinged with a fixed bracket fixed outside the automobile; The front of the main shell is provided with a reflector, which is convenient for the driver to observe the rear vehicles; The front of the main shell is provided with a transmission box; The upper and lower ends of the transmission box are fixedly connected with the main shell through a fixed connecting frame. This utility model relates to an automobile rearview mirror wiper, which is driven by a small transmission motor to rotate the threaded gear shaft, so that the lifting block drives the wiper blade to reciprocate and translate on the lens surface, thereby removing rainwater on the lens surface, with good cleaning effect and high speed, and is suitable for various rainy environments.