This paper explores the Free Semester Program that has been implemented since 2013 in South Korea to release the tension of credentialism in basic education. First of all, the authors state the difficulties and challenges from the context of South Korea during past five years. With that, through in-depth exploration of the Korean government’s strategy, the Free Semester Program, to understand its background, content, and implementation, etc. Finally, the authors take Wei Shan Lien Yen High School as a case reflexing the target policy. This paper draws three major conclusions as important references for Taiwan education reform in basic education: First, Promote the cooperation between schools, community and enterprises to integrate the concepts of exploration and aspiration into the curriculum with practice. Second, the most effective way to implement the teaching diversification must be carried out from the educational institution. Third, it is essential for government to establish research based schools for reducing teachers’ administrative burden and enhance teachers pragmatic research abilities.