Aircraft customization refers to the process of configuration selection and definition of aircraft products ordered by airlines and other customers, which requires the planning and control of the scope and content of aircraft customization, definition carrier, work plan, personnel responsibilities, final deliveries, and potential configuration changes and risks. It is guaranteed by the efficient process and reasonable organization system to improve the aircraft delivery efficiency for customer, and reduce the risk of delays and unplanned cost. Therefore, efficient process management of customization is very important for both manufacturer and customer. It can arrange the design, change, production, certificate, supply chain and inventory in a timely manner according to the delivery plan for seller and buyer, to ensure that both sides fulfill the contract on schedule. Based on the analysis of aircraft customization elements and combining with the theory and experience of program management, this paper discusses some practices of domestic aircraft manufacturer’s customization project management in order to provide some suggestions for promoting the successful development of China’ commercial aircraft industry.