The article is devoted to present problems of real estate massive cadastral valuation connected with contradictions of valuation legislation, imperfect methodology, shortcomings of real estate valuation control system. These problems have caused poor quality of cadastral valuation results, significant divergence of market and cadastral value of real estate objects that owners are not satisfied with. In this situation increase in claims of cadastral value contest and their reason are analyzed. Deficiency of reliable and full information which is necessary for carrying out state cadastral valuation is also considered. Special attention is paid to the problems connected with the Federal law “About the State Cadastral Assessment” from 7/3/2016 No. 237-FZ and development of uniform method of real estate state cadastral valuation. Also ways of legal regulation improvement are offered.