Intelligent building system is the combination of the traditional construction industry, computer industry, and communication industry. In the process of project construction, the reasonable configuration of hardware and software for building automation communication can promote the further development of traditional buildings and construction industries. However, in the actual situation, with the continuous development and advancement of science and technology, the concept of intelligent building is undergoing great changes, which makes its concept and connotation still have some disputes in the academia, and has not reached a consensus. Therefore, in this article, we mainly discuss the future intelligent building system based on the Internet of Things technology.