The APJII survey results in 2017 showed that 143.26 million people or 54.68% of the total population of Indonesia used the internet. While the composition of internet users is dominated by the age range of 18-34 years which is equal to 49.52%. Instagram users are also dominated by the same age range, which is 36% of users. In the age range of 18-34 years, 56.2% follow digital retailers. This paper offers the uniqueness of using millennial Muslim objects and linking them to social media. This paper aims to find out what factors influence the consumption behavior of millennial Muslims on Instagram in Islamic economic perspective. According to Jaribah Al-Haritsi, Yusuf Qardhawi and Monzer Kahf, the basic principles of Islamic consumption include sharia principles, quantity principles, priority principles, social principles, and environmental rules. This study is a causal quantitative-associative type. Data collection techniques using survey methods and data analysis techniques using multiple linear regression. This study used sample of 255 respondents who were determined by the formula Isaac and Michael. The sampling technique uses incidental sampling, with the following criteria: the generation of millennial Muslims, highly educated, having an account on Instagram, and having done shopping at least three times.