Abstract: As an important element in the cultural system,economy cannot be separated away from the national culture to exist independently.The economic system is always immersed in cultural environment,in which they have their own rules,customs,and behavior modes.Economy often forms various complicated relationships with the elements in culture,i.e.family relationship,religion belief,moral,law,and traditional customs.By analyzing the value of national economy behavior,this paper explores the relationship between cultural reason and existence forms in the process of national economy,illustrating that it is a fundamental rule to ensure the least risk in traditional culture.

Key words: cultural reason, existence forms, cultural choice