Abstract: Tractor as an important agricultural machinery, and related agricultural equipment to complete all field operations. But its field work environment is more complex, maintain a good tractor driving environment to improve the efficiency of the driver is of great significance. In this study, we take the electric tractor as the research object, and use product design and ergonomics to complete the modeling and design of the tractor shape design and cab. Finally, RAMSIS is applied to simulate and design the driver’s operating comfort in the driving process. The research results show that the driving comfort and ease of operation of the tractor designed in this study meet the requirements of ergonomics, and provide theoretical basis and reference for the future development and design of various tractors.