Abstract:While the pollution of the marine environment is more and more serious, humanity began to respect the protection of marine environment, produced a lot of ways and means to protect the marine environment, the precautionary principle is a good one, and it has been quoted by some international agreements and some countries’ legislations. Now, the problem of pollution of the marine environment is very serious, marine environmental protection needs to be strengthened, but related legislations of marine environmental protection in our country haven’t adopted the precautionary principle definitely. Consequently, it’s necessary to apply the precautionary principle in our country’s marine environmental protection, but it’s worth further thought and research that if putting the precautionary principle into application in our country’s marine environmental protection is feasible. Through the research about the theoretical basis, legal basis and practice basis of the application of the precautionary principle in the marine environment of our country, we analyze the feasibility of the application of the precautionary principle in our country, work out that the application is feasible, and put forward a concept of the application.