In this article, the concept of atomic energy, the historical processes of its creation, how conflicts between nuclear states regarding the use of nuclear energy arose and the policies of states to resolve them, legal aspects of the regulation of the use of nuclear energy, and the use of nuclear power by nuclear states at present are discussed in this article. energy policy is analyzed. Also, this article focuses on the cooperation between the countries on the correct and rational use of atomic energy, ensuring the safety of this type of energy.