The objective of this research is to investigate the effect of financial literacy on the adolescents' consumptive behavior at the Social Science Program of State Senior Secondary School 1 of Surakarta in Academic Year 2012/2013. This research used the correlational research method. The population of the research was the students of the Social Science Program of State Senior Secondary School 1 of Surakarta in Academic Year 2012/2013. The samples were taken by using the cluster random sampling technique. The data of the research were gathered through test and questionnaire. The former was for the financial literacy value, and the latter was for the consumptive behavior score respectively. The data of the research were analyzed by using the correlational and regression statistics.The result of the research shows that the financial literacy has an effect of -0.464 on the consumptive behavior of the students of the school with a negative significance. Thus, it can be said that the financial literacy has an adequate affect on the adolescents' consumptive behavior. When the financial literacy increases, the consumptive behavior decreases. This is supported by the result of the regression analysis, that is, when the value of the financial literacy is increased up to 1, the score of the consumptive behavior will decrease as much as 0.472.