There is a lot of burr at the hole of self-piercing riveting joint,so it is easy to enlarge the crack growth at this hole.The fatigue crack growth of self-piercing riveting is an important part that determines the fatigue life,crack propagation life of such link structure is even more important,especially for defects of the self-piercing riveting.The main crack propagation of fatigue failure is at the surface of the self-piercing riveting hole.The paper analyzes that the main factors of fatigue strength in self-piercing riveting are mainly related to the performance of materials,as well as the quality of the riveting point.This paper also reveals the fatigue mechanism of self-piercing riveting.