This research is a study of the "The Effects of product design and brand image, on purchase decision with product quality as moderating variable ''. The dependent variable in this study is purchase decision. The independent variable in this study is product design and brand image. The moderating variable is product quality. Population in this research was carried out on Universitas 17 Agustus 1945 Jakarta. Total questionnaires were collected and processed 100 questionnaire. The sampling method in this research is convenience sampling method, researcher choose the closest individual as the sample until the sample size is achieved, then choose the individual that is in place and can be accessed during the study period. This research was carried out by several stages. The first stage is to recognize the theory of literature or by using descriptive statistics and data collection of objects examined. The second stage is to test the feasibility of data using validity and reliability test. The third stage is the stage of hypothesis testing either partially or simultaneously. Then calculated the coefficient of determination adjusted and regression equation of research data. The results of this study indicates that, product design significantly influence the purchasing decision, a significant effect on brand image. Product design and brand image together significantly influence the purchase44decision, product quality as moderating variable is not able to strengthen (weaken) the design of products to purchasing decision. Keywords ; Product Design, Brand Image, Purchase Decision and Product Quality