Abstract: In order to realize the efficient application of safety management in smart construction sites and promote the rapid transformation of the construction industry,based on the analysis of big data technology,BIM technology,cloud computing technology,Internet of Things technology and other technologies in the safety management application of smart construction sites, Take the smart construction site safety management application of the Zunqin Expressway project as an example, analyze the current status of the project's smart construction site safety management application,provide reasonable and effective safety management suggestions for the construction of smart construction sites,and promote the transformation of smart construction site safety management toward intelligence,informatization,and direction.