In the traditional society, the ethical virtue of Zhangyouyouxu that the younger must honor the elders was forced to unilateral effect. At the same time, mutually relational spirit of Zhangyouyouxu, that is to love each other sacrificially and unconditionally between brothers or between races and to give way to each other and stay in order was also held in-law. In modern Korean society, this traditional family-oriented community was rapidly destroyed in the process of pursuing industrial and economic development in a short period of time, and individualism has been deepened, which is focused on personal values rather than family values. To make a good understanding of mutually relational familialism spirit of the ethical virtue of Zhangyouyouxu as a principle of wisdom and to care and respect each other generation would be of great benefit to taking steps to address all kinds of social conflicts between generations, which result from the attitudes to see human relations as a tool for selfish purposes and interests.