Facebook has been widely used among students, not only for socializing, but also for educational purposes. However, it is much less clear whether educational usage of Facebook would be beneficial for student academic achievement, especially in distance education. This paper examined whether different types of educational usage of Facebook would be differentially connected with academic achievement of distance university students. Unlike previous studies, we distinguished between the quantity and the quality of educational usage of Facebook: The former is concerned with time spent, while the latter includes three types of educational utilities offered by Facebook (communication, collaboration, and resource sharing). Taking a self-determination theory perspective, we also examined whether the connection between different types of educational usage of Facebook and academic achievement would be mediated by basic needs satisfaction in distance study. A total of 274 distance university students participated in an online survey. A path analysis demonstrated that different types of educational usage of Facebook and academic achievement were not directly associated. However, a mediation analysis showed that competence need satisfaction (and no other needs) fully mediated some linkages: time spent to achievement, communication to achievement, and resource sharing to achievement. Findings and implications of this paper are discussed.