Since pre-Chin period, different assertions on the funeral customs have been a controversial issue in Chinese culture. Confucians insisted to bury their dead family members ceremoniously and to keep on in deeply sorrow for them for a long time. They kept their insistence on this kind of funeral because of their special ethical ideas. On the contrary, Mohists asked for frugality on funeral. They thought that the Confucians' funeral was a kind of waste. Performing this kind of rites would affect people's ordinary doing and reduce the production of living goods. This essay tries to analysis their debates on ethical and metaphysical concern.