MOOC provides online learners with excellent learning opportunities, which are beneficial to the promotion and formation of a learning community. In spite of rising recognition and participation, problems such as very low pass rates are still serious. As a consequence, this qualitative study explores factors affecting the involvement of MOOC users by encoding 10 learners’ interview data through Nvivo11. Based on the analysis, a serious of feasible strategies are proposed to optimize MOOC platforms: updating curriculum resources to maintain use...