The motor industry is gradually developing intelligent manufacturing projects with the implementation of the intelligent manufacturing policy in China. However, the problems of difficult implementation, long construction period and low degree of intelligence have become the main bottlenecks in the project construction process. The application of digital twin in the construction of intelligent motor workshops is proposed. The virtual modeling of the motor intelligent workshop, twin data acquisition and real-time drive, augmented reality (AR) twin interaction and other simulation technologies are discussed. The application method, process and scope of digital twin in the process of intelligent motor manufacturing are introduced through the intelligent construction of the motor embedding workshop. The results show that the application of digital twin can effectively reduce the debugging cycle and production cost of the workshop, and improve the reliability and verifiability of the project of the intelligent motor workshop.