Learning system has changed in various types, process and materials for a long time. The change has a goal to approach increasing learning result and giving convenience to user. Therefore, the system approach case, LMS, LCMS, SCORM have introduced. The user case, adaptive learning, personalized learning and etc have proposed. In this paper, we propose adaptive learning system based on user characteristics. In order to consider the user characteristics, we provide the function to select learning topic according to user's learning level. We also propose all of learning process for their unit using the service in cloud computing environment.