This article aims to find how government expenditure for the sectors of defense, public order and safety influence the economic situation and national security in Lithuania. The problem how government expenditure for public safety relates to statistics of national security and economic situation in the country is analyzed in the article. The fundamental aspects of the structure of public expenditure and relationship between major defense, public order and economic indicators are analyzed in the article. Analysis is made using self-made figures and counted coefficients that show the strength of the relation of the analyzed factors. Resulting conclusions give an answer how government expenditure affects economic situation and safety of the country.