Abstract: The centrifugal torque of the rotor and propeller blades is a key parameter in the design and analysis of an aviation power system, whose accurate calculation directly influences the structural optimization and reliability of the blades. Conventional CAD software is difficult to efficiently handle the centrifugal torque calculation problem of 3D models with multiple materials and complex geometries, requiring time-consuming manual section division and data integration. A parametrized aided calculation method based on secondary development is proposed in this paper. By constructing a parametrized driving system for the blade three-dimensional model, combining the material density distribution with the change of blade mounting angle, the model is automatically divided into thin layer sections, and the inertial product measurement and data accumulation algorithm are integrated to achieve rapid calculation of centrifugal torque under multiple operating conditions. The developed software tool has the functions of CATIA model profile analysis and division of 1-mm thick 2D surfaces, significantly improving the computational efficiency of complex blade centrifugal torque and providing efficient and reliable technical support for engineering practice.