Since its first production for the commercial use in 1907 in Korea, phonographic records had been used approximately for 60years until 1960s, including the period of the Japanese colony. They needed Western or Japanese technology and money in order to manufacture phonographic records, thus the Korean traditional music in phonograph records at that time was modified and distorted. There are several characteristics of the phonograph records produced during the period. First, production of the most of the Korean traditional music in phonographic records was based on commercialism : records for court music, literati music or Korean classical songs and shaman ritual music, are very scarce, whereas the great portion of recording was about Minyo, Japga and Pansori which were popular. Second, a number of traditional songs and playing were recorded in the format of Japanese music resulting in the easy listening style and distortion of the nature of the Korean traditional music even though it reflected modifications of the music over time. Finally, since 1940s conservation and development of the Korean traditional music had been impaired significantly due to the popularity of foreign music including Japanese music. However, in spite of the number of disadvantages of the Korean traditional music in terms of its protection, preservation, and progress during the Japanese colony period, phonographic records are important because they are a part of the history of the Korean music and are useful to correct the damaged portion.