The invention provides an aerial transmission line deicing vehicle, which belongs to the technical field of power supply equipment. The technical scheme is as follows: the aerial transmission line deicing vehicle includes a body which includes a front end part, a rear end part and a middle part; the front end part is equipped with an ice breaking mechanism; the rear end part is equipped with a limit mechanism; the middle part is equipped with a wiping mechanism and a driving mechanism; the body is arranged on a transmission line in a penetrating manner; and the driving mechanism makes the bodymove along the transmission line. The beneficial effects of the invention are as follows: the body plays bearing and supporting roles; the ice breaking mechanism can remove the ice on the transmission line; the limit mechanism can prevent the deicing vehicle from tilting and side-turning; the wiping mechanism can wipe the melt ice away to prevent secondary icing; the driving mechanism can thoroughly deice the whole transmission line between adjacent high-voltage towers; and manual deicing is not needed, the deicing efficiency is high, the cost of manual operation is saved, and hidden danger caused by manual operation is eliminated.