The purpose of the study is to observe historically national identity expressed in Chinese and Korean Clothing. The literature review and the case study both in China and South Korea were conducted at the same time. The outcomes from the studies are as follow: National identity has been reflected in clothing mainly via the adoption of ethnic elements and civic elements. Chinese and Korean visible-symbolized ethnic elements are from their traditional arts, costumes and lifestyles, invisible-spiritual ethnic elements mainly from religious philosophy. But the Korean wave, which is the modern ethnic invisible-spiritual element, is growing popular all over the world. Chinese and Korean visible-symbolized political elements refer to national or governmental sign, marks or national logo. The invisible-spiritual political elements contain the specific political atmosphere. Chinese are Socialism and anti-capitalism. Meanwhile Korean are Patriotism, Collectiveness, anti-communism and Military ideology. It provides a comprehensive and complete theoretical background for investigating how national identity has been shown in China and Korea’s past and current fashion. It is expected to promote the diversified development of both Chinese and Korean clothing design expression in the future.