Modernization brings social change, including in the fields of science, technology, philosophy, economy and other things. With the influence of the times and the development of products that are increasingly fast and dynamic, it has an impact on people's consumption patterns, especially at the age of teenagers. This type of research is descriptive quantitative research, namely research that uses data in the form of numbers that are analyzed using statistical analysis. This study aims to determine whether or not there is an influence of lifestyle and self-concept on consumptive behavior in students of the Department of Economics Education STKIP Pembangunan Indonesian Makassar. This study consists of two variables, namely the independent variable and the dependent variable. The independent variables in this study are lifestyle (X1) and self-concept (X2) while the dependent variable is consumptive behavior (Y). The results of this study indicate that simultaneously Lifestyle and Self-Concept have a significant influence on student consumer behavior with a significance value of 0.004. While partially Lifestyle has a significant influence on Consumptive Behavior with a significance value of 0.010 and Self-Concept has no significant influence on Consumptive Behavior with a significance value of 0.297.