Riau Islands is one of the provinces in Indonesia that has high marine diversity. One of the marine biotas that is endemic in the Kepulauan Riau Province is the “gonggong” snail (Laevistrombus sp.) which one of the tourism and culinary icon of the Riau Islands. Endemic and endangered marine biota have a very important role in the ecosystem. The purpose of community service to provide education and introduction to endemic and endangered marine biota in the Riau Archipelago, especially for SMA Negeri 3 Batam students. Community service activities were carried out in several stages, namely preparation, pre test, presentation of material using power point and video media, quiz competitions, and post test. Based on the average correct and incorrect answers in the pre and post test, it was a significant increase in the average correct answer of students (48% to 68%), the average number of students' incorrect answers (52% to 32%). Education and introduction of endemic and endangered marine biota in the Riau Islands using lecture methods, quiz, and learn from books were effectively carried out by increasing student’s knowledge.