In the domain of Korean arts history, the studies on the beginning of the Korean modern arts have been insufficient so far. But there have been attempted to deal with this issue in the various fields of Korean arts. But the field of crafts, compared to the fields of painting or architecture hasn't given us good results about this. This study aims at analyzing the beginning of modernization and the modernity of the ceramic crafts that appeared since the period of transition into modern era. In the late period of the Chosun dynasty, various ceramics used by royal class were intensively produced especially in Bunwon(分院) that was operated by government and the ceramics for the general public's daily life were produced actively in local kilns. But various foreign ceramics that were imported due to the opening of ports after the Treaty of Ganghwa-Island(江華島) in 1876 and the privatization of Bunwon in 1884 caused the traditional way of making ceramics to change a lot. And modern techniques of producing ceramics were imported from the West and experts from various countries were invited. Especially, in the period of Japanese colonial morden system of ceramic production was imported from Japan. From the end of 19th century to the early 20th century, the ceramic process and the distribution changed much, these aspects indicate the modernity of the Korean ceramics. This paper examined the progression of the aspects of the Korean ceramics that had undergone change since the late period of the Chosun in order to determine the period, the modernity of Korean ceramics began and established. The period of emerging modern ceramics were divided into two periods on the basis of the analysis of the system of manufacturing ceramics and the government policy in the late 19th century. The first period began when the Chosun opened her ports to foreign powers. After the reformation of systemin the late period of the Chosun, the opening of ports conclusively led to the different framework of the manufacture system that was new to the Chosun. And, in the period of the Great Korean Empire that succeeded the Chosun dynasty around the time of the privatization of Bunwon, modern factories research and education institute for ceramics were established foreign experts with technical skills came into Korea. However, Japan occupied Korea forcedly 5 years after they set up resident-general office in Korea, this caused the modernization. Japan adopted various policies in favor of them and made the manufacturing of the Chosun white porcelain declined fast. Partially the modern technique was adopted making vessels which changed the supply and demand of ceramics. Therefore, the period of Japanese occupation, of Korea when Korea faced the new modernization without voluntary agreement, can be classified as the second period of modernization. Especially in the period of about 40 years since 1910, the year when Japan began to occupy Korea, there were a lot of changes in the ceramic industry. So this period can be considered as a very important period of modernization. In the period of the opening of ports, the aspects of manufacture and the supply and demand of Korean modern ceramics began to change and the privatization of Bunwon caused the manufacture system to change rapidly. And through the period of Japanese occupation of Korea after the period of the Great Korean Empire, the modernization was pushed ahead forcedly without voluntary agreement. Therefore, it is required that the characteristics of the modernity of this period be analyzed by paying attention to the change of situation and system of Korea.