The article covers first published main parameters of management and practical activities of national system for mandatory social insurance of workmen's occupational risks within a Federal Law No 125-FL "On mandatory social insurance against occupational accidents and diseases". The authors present dynamics of insurers (employers) registration, values of allocation rates, dynamics and structure of insurance payments, results of investigations on traumatism and occupational diseases. The suggestions are ways to improve the existing system from occupational medicine viewpoint.