The analysis of pension insurance in the Republic of Croatia aims to achieve a better understanding of the pension system since the establishment of the independent state of the Republic of Croatia until today. Through a 29-year independent, sovereign state, the pension system has changed significantly, which has had an impact on the social life of individuals and ultimately their families. In most of the countries as well in the Republic of Croatia social system was used that is today called generation solidarity, in which system employees are paying into the fund for today's retirees so-called Pay as you go system. As the population ages, pension insurance expenditures become higher and far exceed employee contributions. As the number of employees is decreasing compared to the growing number of pensioners, future pensioners cannot count on sufficient pensions for which contributions will be paid by future employees. This problem seeks to solve sluggish pension insurance reforms three ways. The first reform was carried out in 1999 with the adoption and beginning of the implementation of the Pension Insurance Act, which regulated pension insurance on the basis of generational solidarity in a different way. Then, in addition to the mandatory first pillar of generational solidarity, a second, capitalized pillar was introduced in the association's pension reform in 2002. in which the amount of an individual's pension depends more directly on the amount of payments to an individual account during his working life. It is also introducing the third completely voluntary pillar of pension insurance. These other two pillars include pension funds with capital coverage of the so-called Fully Funded. The implementation of the second reform diversified and strengthened the financial sustainability of the pension system. The introduction and implementation of the third pension reform at the beginning of 2019 was aimed at achieving three goals: the sustainability of the system, the adequacy of the pension and the solution of inter generational inequality. Even after the reforms, it is important to note that the younger generations should not see pensions as an option that will provide them with a peaceful old age, but only as a supplement, a protective network that will help them when they find themselves in retirement. The reason for this is that the trend is still unfavorable and at the end of April 2020 the ratio of the numbe r of pension beneficiaries and insured persons was 1:1,22.