Abstract: Construction of contaminated sites database system is an important content of contaminated sites management on the nationwide level. The research of contaminated sites management in developed countries started early, their respective management systems of contaminated sites based on classification mechanism had been gradually formed, and databases and information management systems of contaminated sites had been constructed, facilitating the normalized and digitized management of contaminated sites. In China, such work is still in initial stage, and there is a need to further study and explore the construction of corresponding databases and information management systems. The construction approaches of database systems of contaminated sites in USA and Canada were explained, and their revelation for construction database and information management system of contaminated sites in China investigated, on the basis of an analysis of current domestic research status.