Аннотация:This paper presents generalized data on the geochemistry and distribution of rare earth elements (REEs) in mineral waters and bedrocks on spas of the Primorye. The features of distribution of REEs in mineral waters are defined, on the one side, by the chemical properties of REEs and type of their behavior in hydrocarbonate environments, and on the other side - by the compositions of bedrocks of the hyper genesis zone. The general regularity of the behavior of REEs in hydrocarbonate environments is the enrichment of mineral waters by heavy REEs. At the same time mineral waters of each spa have the characteristic features of distribution REEs reflected the main specifics of the hydrogeological structure of spas and composition of bedrocks. It is established that the hydrocarbonate form is the main form of REEs foundations in the mineral waters of spas.