The Internet of Things is one of key development areas in strategic emerging industries.It has been widely used in agriculture and rural information, which played an important role in traffic safety and dispatch system for public transport.Construction industry is a high risk traditional industry, and how to adopt Internet of Things technology for intensive monitoring hazard in the process of project management becomes a hot topic for many scholars.Recently, application on video surveillance, tower crane operation surveillance and safety surveillance show that Internet of Things technology not only does collect and record data, but also does analyze the safety situation of project sites, to fundamentally solve hidden dangers by efficiently monitoring.