A sochang (小倉) is a loosely woven cotton fabric that is mainly used for diapers, dishcloths, and blanket lining rather than as a clothing material. Sochang-jik(小倉織), distributed in modern times, was a fabric used in various ways, such as uniforms, work clothes, and school uniforms. Because of its strong material, it was a completely different fabric from the current sochang. In Korea's Modernization Period, Sochang-jik refers to the Japanese textile 'Kokuraori', Japan introduced during the Open Port Period(1876-1910). Kokura-ori is a textile produced in the Kokura area of Fukuoka-ken in the early 17th century and is named after the Kokura area. However, after 1902, the Kokura area sochang-jik was discontinued, and many other regions of Japan came to produce sochang-jik. Sochang-jik produced in these regions was exported to Korea, China, India, Australia, and the South Seas. At that time, sochang-jik was generally called 'Gogura' or 'Kokura' in Korea, but 'Sochnag-jik' was used in official documents or records requiring Chinese characters. Sochang-jik, circulated in Korea in modern times, is a cotton fabric of plain and twill weave with color, and Sang-gang sochang-jik, which is plain and twill weave. In addition, since warp and weft are woven with folded yarn or a mixture of yarn made by twisting two or more threads, the material is solid and durable, so it was used for work clothes, uniforms, and school uniforms. This study confirmed that the characteristics and uses of modern sochang-jik are different from those currently in circulation.