With the guidance of Main manufacturer - Supplier program model of civil aircraft , the artical introduces the supplier management in civil aircraft design. The Supplier Management Function System is discussed from three stages of seeking supplier, managing supplier and developing supplier. Seeking supplier is just selecting applicable supplier including finding out the potential suppliers and evaluating suppliers, and Managing supplier includes information management, relationship management, planning management, risk management and communication management after selected suppliers . Developing supplier is to improve their ability. During the procecc ,main manufacturer and management supplier study each other. Main manufacturer will make management supplier better by measures of performance assess and rewards and punishment.