The importance of greening of modern agricultural production in terms of increasing the use of toxic substances of chemical or biological origin, which requires the direction of modern agricultural production in the direction of greening of artificial and natural factors of production, giving these issues extreme relevance. The conceptual and categorical transformation of ecological aspects of agriculture is given, which alternately took the form of the principle of agrarian law first as the principle of greening of labor in agriculture, then – the principle of greening of agriculture, ecological orientation of entrepreneurship in agriculture, and later – greening of agriculture and finally, acquired the formulation of the principle of greening of agricultural legislation. Other variants of the author's positions are also presented, among which the greening of agrarian law or directly the principles of agrarian law, as well as the state agrarian policy are considered. Based on the general nature of the principles, the implementation of which requires implementation in the regulations of the legislation, the priority of formulating the principle of greening of agricultural legislation is substantiated. At the same time, there are examples of greening the content of status agrarian laws, as well as non-«greening» status laws, which indicates the incomplete implementation of this principle in agricultural legislation. An array of functional agrarian laws is analyzed for certain areas of activity, which in quantitative terms and in terms of coverage outweigh the greening of status laws. Keywords: principle, greening, agrarian law, greening of agricultural legislation