The net assembly technology is presented in the process of composites component of aircraft. Error accumulation is reduced and coordination accuracy is improved with digital quantity transfer in the process of product design and manufacturing. In order to improve the assembly accuracy

the measuring device

such as laser tracker is applied

the assembly accuracy and tolerance distribution is adopted with the stage of assembly process design. Taking an composites component as the typical research structure of composites fuselage

the process flows and methods of net assembly technology is defined. The method can realize one time clamping

processing and without repeated assembly of the parts

so that the assembly quality has good stablility.