For the problems of low automation level and complex die structure in the production of spring clamp for plate and wire, the part characteristics and forming processes of spring clamp were studied. The punching and bending layout processes of spring clamp were designed,and the process characteristics and forming equipment of spring clamp were analyzed.The material feeding accuracy was ensured by using automatic intermittent feeding the continuous automatic production of products was achieved by the progressive die punching and CNC bending process, and the bending accuracy was ensured by the composite forming process combining punching and cutting with multi-stage bending. On this basis, a composite forming die structure including punching mechanism and bending mechanism was designed. The production test results show that the composite forming process of spring clamp not only improves the production efficiency, but also reduces the production cost, which demonstrates significant advantages in terms of advancement, feasibility and practicality, laying a solid practical foundation for the application and promotion of this process.