This study was carried out to check the effect in author’s class activities in order to improve the learner-centered class environment. When it comes to the grade that joined the research, they are first-year and second-year students in Department of Social Welfare who have taken the “Community Welfare” and “Child Welfare” courses and data was collected by carrying out opinion surveys, interviews, etc. for class. The collected data was reviewed by dividing into before and after mid-term and issues from class activities were reflected after mid-term and leaner-centered class environment was partially implemented. Results showed that firstly, presentation first and lecture second, problem solving and presentation script making class were difficult to adapt in the beginning, but the interest in learning was improved and the data collection capability on relevant topics was enhanced. Second, although their opinions were persuasively expressed and the process of accepting the opinions of other students was experienced in discussion class according to the group project, the training process was needed to draw a more skilled discussion. Third, regarding the class activity where the opinion of the student was reflected after mid-term exam, it was very satisfactory with the feeling that the faith and trust with author are formed. Through these results, it was found that the communication process with students should be considered in order to become a leaner-center class environment. It is expected that the results of this study helps seek the improvement in student learning and university class environment.