This research is about the implementation of Instagram as a media promotion of Uwitan Company to increasing their number of customers. The theoritical framework that used in this research is about the promotion strategy, diffusion promotion, and social media. This research uses a descriptive qualitative methods and the data obtained is the result from interview with some internal informant and also documentation. To prove the data validity, researcher use the source triangulation that will compare the interview’s result with documents that related to the research’s topic. The result of this research show that the strategy of Uwitan Company uses Instagram as their media promotion can incereased their number of customers and also help them to reached their prospective customers. Instagram can increased their number of customers because of the interactions that happened between the company and the customers. To increased their interactions with the prospective customers, the company used an intersting messages through a photo post, caption, or their bio. They also held a simple quiz, giveaway, and endorsement. Through this activities their prospective customers will be more interested to their content.