Circular agriculture (CA) refers to the circular use of agricultural waste and the conservation of resources, which has attracted increasing attention in China in recent years. In this paper, policies of CA were discussed, and the implementing projects, methods and future researches were summarized as well. In general, as a development guide for CA, current policies on CA were ineffectively executed by the government. Lots of projects of CA have been tested and verified in demonstration areas in China, but some of these projects did not lead to widespread implementation. Based on regional natural conditions, industry types, resources endowment, etc., various successful models of CA are formed in China. The technology and operational mechanism of CA are expected to be further studied in the future, which are helpful in promoting cleaner agricultural production.