This study aims to explore the life education idea and praxis of Confucius's thoughts on Ren. This discussion reveals the following ideas of Confucius's thoughts on Ren: (1) the development of life education rooted in a kind of ethical relationship, (2) the development of humanity-oriented life education, and (3) the development of morality as the core of life education, and (4) the development of Ren as the essence of life education. In addition, according to the idea mentioned, the author describes how to practice courses. The author hopes to enrich the idea and praxis of life education, and hopes this study can develop the theoretical basis for the practice of life education in Taiwan.