The purpose of this thesis is to contribute to the fashion industry of Korea and China by providing the basic informations of Korean fashion company planning to launch into the Chinese fashion market, and also presenting the Korean fashion style to the China, by the way of searching the sameness and differences of the casual style. The direct picturing method and comparative analysis were applied for the methods of study. The whole body pictures were taken from the major fashion streets of Seoul and Shanghai, then clear 250 photos were selected in each city. The period for two weeks from 1st, July to 14th, July 2008, and from 10AM until 5PM. The results of study are as follows. The sequential order of frequency is easy casual, jean casual, romantic casual and character casual in Seoul and Shanshai. In case of easy casual, there were many similarities of the preferences in the items, colors and coordinations, while showing the differences in the styling of the clothing. Taking the jean casual, there were no specific differences in items between two cities except the styling of clothing in which the tidy style were more prevalent in Seoul, while the sexy style were more predominant in Shanghai. The main item of romantic style was the one-piece dresses. This was preferred in the style of A-line or H-line with short length, in Seoul while X-silhouette showing the body line with knee-length skirts were more popular in Shanghai. Finally the frequency of character casual is below 5% in both cities. In the items, the skirts were more preferred as a bottom in Seoul in contrast with the pants being more prevalent in Shanghai, the sleeveless top popular in both cities. The modest style were noted in Seoul, the sexy style were more prevalent in Shanghai. However many similarities between two cities were found in the speed of acceptabilities of fashion.