China has large population but little land. Such objective conditions determine that it is required to adhere to the policy path of "cherishing, rationally utilizing land and practically protecting cultivated land". Due to the relatively immature technology in the early stage of resource development in China, extensive utilization of resources leads to serious pollution, and the situation of the restoration of contaminated sites is severe. After nearly 20 years of a large number of pollution, land restoration there have been a lot of achievements in research and practice, but in the era of big data development, prevention and cure of soil pollution in China, there are a number of problems in the development of science and technology, this paper put forward the corresponding recommendations and opinions for the existing problems, in order to provide decision support for using big data to repair contaminated sites.