In the traditional way, the structural analysis and optimization of the complex shield cutter parameterization model requires a lot of manual intervention, and the whole analysis process is tedious and inefficient. Aiming at this defect, the parameterized design and automatic analysis and optimization method of the cutter head structure are proposed. Based on the parameterized shield cutter head modeling system, through the simplified rules and evaluation criteria, the parameterized model of the shield cutter head was automatically simplified. The secondary development principle and database technology were applied to develop the information data interface between SolidWorks and ANSYS. By use of this interface, the integration of parametric design and finite element analysis can be realized. The test example shows that the developed system can not only complete the structural design of the entire shield cutter head, but also realize the structural analysis and structural optimization of the model, greatly reducing the workload of product design and optimization, and shortening the development cycle of the product.