In recent years, the number and scale of civil engineering projects in China have shown an obvious expansion trend, which has played an important role in economic growth. However, due to the many and complex links involved in civil engineering, the requirements for construction technology are getting higher and higher, and the traditional mode is still unable to meet the building requirements. In this context, intelligent construction came into being, and has been well applied in civil engineering construction. Based on the analysis of the characteristics of civil engineering construction, this paper focuses on the application of Internet of Things technology, BIM technology and target detection technology in civil engineering construction, and combs the application prospect of intelligent construction in civil engineering construction for reference.