In order to improve the level of intelligent manufacturing in electrical equipment manufacturing industry, this paper summarizes the current situation of electrical equipment manufacturing industry and the construction target of intelligent factory, and describes the architecture reference model of intelligent factory in electrical equipment manufacturing from three dimensions: system level, content structure and product category. Based on the above architecture, the smart factory index system is further constructed from the five aspects of digital research and development, manufacturing, management, service and basic support technology. The index system will provide reference for the construction of smart factories in electrical equipment manufacturing, and provide direction for the promotion and application of smart factories.