This research it aims to identification the influence of shopping life style, hedonic motive, browsing, and the fashion involvement on impulse buying. The independent variable that contained in this research is shopping life style, hedonic motive, fashion involvement. The mediation variable that contained in this research is browsing. While the dependent variable that contained in this research is impulse buying. The object that used in this research is Centro Department Store with the criteria of respondents who have done unplanned purchase maximum within the last 6 months. The sample technique used in this research is purposive sampling. The method of collecting data is using a questionnaire. While the number of respondents in this research as many as 145 respondents. The data analysis technique in this research used SEM (Structural Equation Modeling).