The authors talk about the health, pension and social security. These three subsystems of social security are seen through the current legal framework, which consists of three laws: the Law on Health Insurance, the Law on Compulsory Social Insurance and the Law on Employment and Unemployment Insurance. These laws are observed in terms of the rules that are currently open. This approach is the study of these laws relies on the fact that these laws are applicable regulations in this area. The legislation in force in Serbia, in our opinion, should be subject to change and adjustment with the current legislation in force in the EU. Or should it be changed and improved.