The purpose of this study was to determine whether Product Quality (X1) and Promotion (X2) had an effect on Purchase Decisions (Y) on Telkom University Students. The phenomena in this study were explored using quantitative methods. Researchers distributed questionnaires to Telkom University students with a total of 395 respondents. Data analysis used descriptive analysis techniques, classical assumption test, and multiple regression analysis to answer the proposed hypothesis. The results showed that partially Product Quality (X1) and Promotion (X2) variables had a significant effect on purchasing decision making (Y) for Telkom University students in the Shopee Marketplace. The three variables of Product Quality (X1) and Promotion (X2) also have a significant simultaneous effect on the Purchase Decision (Y) of Telkom University students in the Shopee Marketplace.