The master’s final work is written in Lithuanian language, consists of 77 Pages, 23 Figures, 16 Tables, 54 References, and 11 Appendixes. KEY Words: health insurance, health insurance system, compulsory health insurance, additional (voluntary) health insurance, health insurance Fund, Compulsory Health Insurance Fund Budget, health insurance payments, financing of health attendance, health attendance costs, efficiency. Research object: health insurance system. Research subject: health insurance. Research aim: after analyzing the theoretical and practical aspects of health insurance, to evaluate health insurance system in Lithuania, to foresee its perspectives and to provide the proposals for development. Objectives: to show the theoretical aspects of health insurance, to evaluate health system in Lithuania according to the chosen criterion (financing model, incomes, costs), to foresee the perspectives of health system and to provide the proposals for development. Research methods: analysis and synthesis of literature, logical analysis and synthesis, filing, comparison, vertical and horizontal analysis, simple linear regression and correlation, forecast calculations, diagrammatical representation of data. Health insurance system in Lithuania was analyzed and evaluated as well as the proposals for it’s development were presented by using scientific literature of foreign and Lithuanian authors, legislation, chronicles of statistics and electronic information sources.