Aiming at the problem of high energy consumption and high material consumption of the sintering system caused by the trolley arch camber during the operation of the sintering machine, a mechanical model of the trolley arch camber is established based on the analysis of the mechanical behavior characteristics of the trolley arch camber, and the critical condition of the trolley is obtained; the interaction force between the trolley and the star wheel is obtained through ADAMS dynamic simulation, and the cause of the trolley arch camber caused by the tooth profile design of the traditional star gear is revealed, while the trolley arch camber model is proved in combination with the actual production. On this basis, the tooth profile correction method of the star wheel tooth plate is proposed, which greatly reduces the acting force between the tail star wheel and the trolley, and the purpose of reducing or even eliminating the arch camber is achieved, so as to provide support for energy saving and consumption reduction of the sintering machine.