Under the background of the rapid development of artificial intelligence in the new engineering, it puts forward new challenges to the cultivation of undergraduates in the building electricity and intelligence. Taking the major of building electricity and intelligence as an example, this paper analyzes the current situation of the students" training and development of the major and the correspondence between the collaborative theory and the students" training of the major, and applies the collaborative theory to the training of the major. On the basis of multi-party knowledge sharing and interaction, this paper explores the construction of undergraduate training mechanism of building electricity and intelligence specialty from the aspects of collaborative development of training objectives, collaborative development of dynamic adjustable operation mechanism, monitoring system and evaluation system, so as to meet the needs of the society for diversification of building electrical and intelligent professionals.