Grounded, that on the method of influence of function of obligatory state social security divided into general and special. To the public functions belong: protective; economic; social-rehabilitation; demographic. The special functions is a function of redistribution of cash disbursements and social services between the insured persons; function of accumulation of insurance payments; function of prophylaxis of offensive of accidents insured

Keywords: public welfare, obligatory state social security, public functions, special functions, insured persons