The self-piercing riveting joints were prepared by HC340/590DP high-strength steel as upper layer plate and AlSi10MnMg aluminum alloy as lower layer plate.Before riveting,T5, T6 and T7 heat treatments were applied to the AlSi10MnMg aluminum alloy to investigate the influence of different heat treatment methods on the forming quality of joints.The results show that the plasticity performance of aluminum alloys in T6 and T7 states is better than that of cast and T5 states. Based on the surface forming quality and cross-sectional metallographic structure of joints, it is found that the macroscopic forming of joints has no obvious defects and good internal forming quality when using the aluminum alloys in T6 and T7 states as the base plate of joints. Furthermore, through the static tensile test of joints, it is found that the performance of the aluminum plate joint after T6 heat treatment is more stable. The main failure mode of shear test is that the rivets are pulled out completely casued by the warping deformation of the first layer of steel plate, and the joints of aluminum plates in cast and T5 states appear brittle fracture and the joints of the aluminum plates in T6 and T7 states appear brittle and ductile fracture. The failure mode of peel and cross tensile tests is characterized by the large deformation of sheet metal.