As the technology advanves of today are among the forms of globalization that make technological advances include changes in the busiess world, one of which is characterized by easy access to internet media that makes business activities unbounded in time and space, this led to the brith of  the concept of the internet-based electronic trade or most people say E-Commerce. E-Commerce is aware of marketing, sales, deliveries, services and payments to consumers from a worldwide network of business partners. The study aims to see the influence of promotion, halal product, and trust in buying user E-Commerce Shopee in Islamic Faculty Student Ibn Khaldun Bogor University. The method used in this study is the quantity. The population in the study is partial to E-Commerce Shopee at the Islamic Faculty Student Ibn Khaldun Bogor University with a Nonprobability Sampling, Sample not change Purposive Sampling and using the Slovin rule of a questionnaire collection of data analysis technique used is the Partial Least Square (PLS). The results of this study show that promotions have a positive but significant impact on purchasing interests, halal product has a positive and significant impact on purchasing interests, and trust has a positive and significant impact on purchasing interests. To the E-Commerce Shopee in order to enhance the promotional aspect, strengthen the product halal aspect and strengthen the trust aspect in order to increase the interest of the purchase.