In order to continuously improve the operational performance of the aircraft final assembly production line and promote the reform of the business model

this paper proposed a new management and control mode of aircraft final assembly production line based on digital twin. Firstly

the evolution process of aircraft final assembly production line from physical space to information space is analyzed，as well as the operation control requirements of production line. Secondly

the digital twin composition of aircraft final assembly production line is expounded

at the same time

the digital twin model of assembly production line is constructed based on five-dimension digital twin model. Finally

the virtual model is established based on 3DMAX technology

and a digital twin system for final assembly is built by system development technology. The mapping between physical entity and virtual space is realized by collecting the process data of production line

and the digital twin technology in aircraft final assembly production line is preliminarily applied. The results show that the control mode of aircraft final assembly production line based on digital twin plays an important role in improving production efficiency and quality.