In the field of aerospace, there are a large number of large curvature radius aluminum alloy sheet metal parts with many kinds and small batches. When forming at room temperature, the springback is large and the forming accuracy is poor. Therefore, the springback control of sheet metal part with a large curvature radius was achieved by hot forming-quenching integrated process. Firstly, for banded part with a large curvature radius, the springback law in the hot forming-quenching integrated process was revealed, and the springback mechanism was analyzed by the simulation. Then, the forming of a complex buccal frame part was carried out by the optimal process parameters obtained by simulation. The results show that higher temperature is beneficial to inhibit springback. When the temperature reaches 490 ℃, the specimen is completely attached to the die, while formed at room temperature, the specimen almost returns to the shape of a flat plate. A higher temperature can cause the significant reduction of tangential stress, and the elastic deformation is small. In addition, in-die quenching greatly limits thermal distortion and further inhibits springback. The optimal forming temperature for hot forming-quenching integrated process springback inhibition of 2A12 aluminum alloy sheet metal part with a large curvature radius is 490 ℃. At this temperature, the high-precision buccal frame part is formed successfully, which proves that the hot forming-quenching integrated process can be used for precision forming of aluminum alloy sheet metal part with a large curvature radius.