Aim\ The development of CAD system of engine piston makes it convenient and rapid in design
analysis and drafting of the engine piston. Methods\ The modern CAD method and traditional design method are combined. Results\ The developed system of Engine Piston CAD includes the piston parameterized design
FEA
structure optimizition
2D engineering drafting and so on. Conclusion\ The study of the system will play an important role on the engineering design and redesign.