This study involved classroom action research that aimed to 1) develop the learning management competency for preservice teachers using the project-based learning approach and e-portfolios and 2) study the reflection of those preservice teachers in terms of learning management using the project-based learning approach and e-portfolios. The target groups for this research comprised 27 fourth-year students of the Teaching Japanese Language Program, Faculty of Education, Khon Kaen University. I divided the research tools into two categories: (a) tools for learning management (four learning management plans and teaching logs) and (b) tools for collecting research data (the portfolio assessment form and e-portfolios). The research results revealed the project-based learning approach and e-portfolios improved the Japanese language and culture learning management competency in each indicator at different levels; in addition, the results reflected the Japanese language and culture learning management focusing on learners and the use of learning materials stimulated learners' interest and systematic working and helped them appreciate the efficiency of work and ability to work with others.