On-line learning has been adopted as a major educational technique and method due to the COVID-19 pandemic. Even though COVID-19 led to many problems such as faculty's burden and stress during the early stage of COVID-19, both students and faculties have gradually become familiar with on-line educational environment. The high technology development and social requirement for new educational methods have paved the way for on-line education as well. Therefore, on-line learning or blended learning will be likely to go on after the end of COVID-19 pandemic. It seems that college will use both traditional in-person class and on-line class and develop various types of classes aligning them. In accordance with those social change and requirement of on-line education, it is necessary to prepare guidelines for effective utilizing on-line learning. The main purpose of this study is to examine the learning behaviors of the students in on-line learning and analyze the learning effects by comparing with learning behaviors in higher education. Given the lack of research on how online learning behaviors and patterns affect academic performance, this study will analyze the academic achievement by comparing with learning behaviors such as the number and duration of on-line learning sessions. The study includes theory classes and computer practical classes. The findings of empirical analysis will provide insights that the effective planning and designing on-line classes based on learning behaviors are key to enhancing learning effects and learner's satisfaction.