To better improve the productivity of discrete assembly shops and promote the application of intelligent manufacturing technology, the architecture of intelligent manufacturing in discrete assembly shops was put forward, as well as its operation process. The key technologies such as intelligent process design, adaptive assembly and adjustment, and real-time dynamic control were studied. Altogether, the basic composition, operation logic, and optimal control mechanism of an intelligent assembly shop were discussed. Ultimately, the intelligent assembly system of shop level for discrete products was formed. It has some reference value for the development and application of intelligent assembly technology.