The use of Social Media is increasingly developing in Indonesia, causing many companies to be interested in using social media as an easy marketing tool and can add value to the product. Mobilkuis a mobile application-based digital information service startup that will be launched in the near future. To be known to the public, Mobilkuneeds a good marketing strategy. One of them is through Social Media marketing. So that my car needs proper social media strategy planning. The 4 most appropriate platforms used by Mobilkuto do Social media marketing are: Instagram, Youtube, Twitter and Facebook. We recommend that Mobilkusocial media marketing be done 3 times a day and the best time at 09.00 -12.59, 13.00 -15.59, and 16.00 -18.59. My car should make advertisements by offering discounts, ads with interesting photos, advertisements by providing clear information, advertisements often appearing, and ads with attractive advertising designs