This study examines factors that prompt international students in Japan to participate in Reading activities, which was based on the Theory of Planned Behavior. 50 Chinese students in Japan responded to a questionnaire about their Japanese book-reading activities. Path analysis revealed a relation between intention of L2 reading, subjective norm of L2 reading, attitude to L2 reading, and perceived behavior control to L2 reading. However, the reliability and validity of the model was not enough. This result suggest that further consideration will be needed.