Abstract The study aims to observe the pension systems and directions of pension reforms in the 10 member countries of commonwealth independent. Replacement rates for the countries preserving distributive pension system, gross replacement rates amongst countries that introduced cumulative components, average replacement rates, the average index of pension system load, life expectancy at birth, and natural increase in CIS countrieshave been critically examined. Secondary data of above area have been used for 2000-2016 for 10 countries. Data were obtained from statistical book. Descriptive tools viz mean, standard deviation, growth and trend have been used analyse the data.Amongst the countries which preserved the distributive pension system the highest indicator was registered in Belarus (41%), and the lowest was found in Moldova (25%).  Armenia had the lowest gross replacement rate (21%) in 2016 while highest indicator was registered in Kazakhstan (38%). All CIS countries except Tajikistan encountered with demographic aging issue. The increase in the number of pensioners in CIS countries resulted in the overload of the employed population, countries with cumulative components, the burden is higher for Armenia it was 2.2 and 1.8 for Russia.only five countries did not encounter natural growth issues amongst the CIS countries in 2016. In Tajikistan the natural growth formed 25 ‰ (promile), which is 1.7 times higher rate compared to 2000. Key words: Pension, Retirement Age, Senility, Cumulative Elements JEL classification: H55, J26, J32