| The precautionary principle is to prevent scientific uncertainty environmental risks, the protection of human and environmental principles in environmental law, since their produce can be utilized in many international environmental conventions, but also in many countries as a legal principle to be adopted. Interest in the world choose to use nuclear energy in the energy shortage today, increasing the existing plans to build new nuclear power facilities, renovation of the old nuclear power plant, but also intend to use nuclear technology for guarding against the increasingly serious environmental risks, nuclear energy the peaceful use along with the risk of potential radioactive releases, nuclear contamination with the scope of pollution and pollution have serious consequences, it is difficult to governance characteristics, nuclear contamination in the event of harm a large range, the biological destruction of the surrounding very serious, long sustained period, post-processing dangerous complex. Serious harm and difficult to restore the characteristics of the importance of the precautionary principle in the prevention of nuclear contamination. Nuclear pollution control laws should be more emphasis on the embodiment of the precautionary principle, its security is particularly important that China should establish the precautionary principle in their national legislation to improve the relevant legislation in a timely manner.In addition to the summary and conclusion, the text is divided into four parts:The first part, define the main definition of the precautionary principle, the constituent elements of the precautionary principle in environmental law and overview. The second part analyzes the precautionary principle in China’s nuclear pollution prevention laws. The third part analyzes the precautionary principle applies to the lack of China’s nuclear pollution prevention law. The fifth part, explore and improve the precautionary principle the risk of nuclear pollution prevention laws.Research ideas and methods used in this paper are mainly from the point of view of the following aspects:First, the use of historical visits, to sort out the previous research results, and conduct their own research on this basis; Secondly, the use of comparative law research methods, comparative analysis of the use of the precautionary principle in the legal system of nuclear safety and other environmental legal system; Finally, in the historical investigation and comparative study on the basis of system synthesis, induction method on the results of previous studies to analyze wheat from the chaff, discriminating, and eventually come to my own view. |