Now the filial piety idea and the content have changed remarkably with the progress and development of society, and when coping with this kind of social change, the filial piety thought based on the traditional Confucian thought often appears lacking the ability to do what one would like. Therefore, we should consider fully the positive influence and value of filial piety thought in Buddhism in contemporary society. Feast of Lanterns after, as one of the Buddhist classical filial piety classics, is worthy of being studied.