This design determines the overall design scheme of the de icing machine, and determines the main structure of this small de icing machine, which is mainly composed of seven parts: the prime mover, the transmission device, the ice breaker, the ice collecting device, the ice throwing device, the car body and the walking device, and analyzes the whole working process of this small de icing machine. Selection and design calculation of main devices; After that, the auxiliary structure of the de icing machine was selected and