Driver seats are a key content of cockpit design for transport aircraft, which mainly confirms the reference point of the driver seat, seat structure size, stroke and ergonomic design parameters, such as the constraint system. pilot seat on Transport aircraft first defines the ergonomic design in accordance with Chinese human physiological characteristics and the body size of the driver comfortable sitting posture. A comfortable sitting position simplified 2 d model was established, using the empirical formula combined with human body size analysis to calculate the seat reference point, seat adjustment stroke, seat restraint system parameters such as the ergonomic design parameter values. And a virtual ergonomic simulation was carried out. The results show that the driver seat ergonomic design parameters were reasonable, and the design has a strong guiding value for fixed wing aircraft seat design.