As the key link of aircraft development, aircraft assembly has many characteristics, multi-disciplinary field, high accuracy of coordination, high labor intensity and so on. The advanced aircraft assembly technology can improve efficiency of aircraft assembly, shorten development cycle, and lower the production cost. Now most domestic aviation companies still use non-modular assembly. They don’t form a high efficient, neat and more utilizable assembly schema. To analyze non-modular aircraft assembly way, advanced modular aircraft assembly concept is proposed, The focus is to describe several key technology, modular design, the definition of assembly module, the construction of the assembly structure tree, the management of the assembly order library, based on product configuration matching assembly order.