This article analyses international legal regime of shared water resources by the states of the Eurasian Economic Union (EAEU) and justifies the approach, according to which the common policy in the sphere of protection and exploitation of shares water resources is necessary. EAEU member states have concluded several agreements aimed at protection and establishing regime of exploitation of shared water resources. However most of the provisions of these agreements need to be further specified, harmonized and codified. The author comes to the conclusion that the system when firstly the framework rules are adopted and further special rules are created to supplement such framework rules is appropriate to regulate relations in the sphere of protection and exploitation of shared water resources. It is suggested to foresee the special chapter in the Treaty on EAEU, containing common principles of protection and exploitation of shared natural resources of the EAEU.