The goals of this study was to investigate the impact of Edmodo to enhance students' motivation in learning writing. The participants of the research consist of 36 students studying in university in the 2018-2019 academic years. In the research designed in the descriptive qualitative design, the class observation was carried out in the writing lesson, and it was observed that the writing class using Edmodo increased the students' performance and achievement to the lesson. The findings of this study found that students actively participated in writing class. Their high curiosity was proved by the participation of their writing week by week. This research also indicated that most students were willing to use Edmodo and felt that this online platform was proper to post their writing and freely receive feedback privately without being exposed to their friends.