Death is a fundamental issue discussed in philosophy both in ancient and modern times, both domestically and internationally. Confucian scholars, including Confucius and Zengzi, actually have a clear understanding and distinct attitude towards death. Since Confucius, Confucian scholars have attached great importance to the interpretation of the issue of death. Zengzi's view of life and death is manifested in three dimensions. Firstly, Zengzi believed that the body was bestowed by his parents and should not be destroyed. When he died, he should return with his whole body and rest in peace after death. Secondly, propriety and righteousness are more important than life, and for pre Qin Confucian scholars represented by Zengzi, adhering to propriety and righteousness and dying is a kind of glory. Finally, death is not simply an end, but a union with the natural universe, and this new state of existence is the unity of heaven and man. Filial piety, as a fundamental moral emotion and behavioral norm, is not limited by time and can be passed down from generation to generation, lasting forever. Just as "benevolence" is the core of Confucius' ritual studies, "filial piety" is not only the core of Zengzi's thought, but also the core of Zengzi's ritual studies.