Abstract:The system of digital flexible assembly tooling to the fuselage for requirement of fl exible assembly of next-generation aircraft is designed based on flexible tooling. By studying on digital fl exible assembly tooling and its related technologies, mechanical system of the fl exible tooling is designed, multi-axis motion control system for tooling based on fi eld bus technology is established, and fl exible tooling system specific to the generating software of assembly data is developed. By the design of digital fl exible assembly tooling for aircraft fuselage, it has important practical significance that promotes application of fl exible assembly tooling, to build fl exible assembly line and achieve full digital assembly which lays the foundation for next-generation aircraft.