Introduction. In article one of the basic principles of the land right mentioned in Art. 1 of the Land code of the Russian Federation, the fixing priority of protection of the earth as the most important component of the environment and means of production in agricultural industry and forestry before use of the earth as a fast estate is investigated. Theoretical analysis. This principle means that possession, use and the order of the earth are carried out by owners of the land plots freely if it does not cause an environmental damage.