Due to the large amount of funds involved, the large number of participants, and the complicated projects in the construction industry, it is difficult to improve work efficiency. The block chain technology, by which the data cannot be tampered, is decentralized, and intelligence contracts can be applied, so it provides a new way for the construction project management. This article analyzes the current situation of construction project management, points out the current problems, and discusses the application of blockchain technology in the management of construction projects. Finally, it takes the construction fund management blockchain system of Xiong'an New Area in China as an example, to discuss the application prospect of block chain technology in construction project management and the problems that remain to be solved.