The famous Gyeonggi folk song `Gunbam Taryeong` is known to have been created during the Japanese colonial period of Korea. However, unlike most new folk songs, who wrote and composed the song is not known, except that it is just identified as a folk song of Gyeonggi. Therefore, this study explores when the folk song started to become popular among people and what changes it has undergone while being passed down until today. The study found that Gunbam Taryeong is composer Jeon Su-rin`s creative work written in 1932 during the Japanese colonial period. The words of the song were originally created under the influence of "Mangok Gunbam Taryeong" which resulted from a combination of two different folk songs, "Yeonggam Taryeong" and "Bamyeot Taryeong." The folk song Mangok Gunbam Taryeong took a form in which two people exchange melodies with each other, giving out vowel sounds or short words of encouragement, called chuimsae, and thus such sounds and words were also used in Jeon Su-rin`s Gunbam Taryeong. Today, however, it has been transformed into a song being sung by a single person. Gunbam Taryeong was originally written in four-quarter time but later translated into a measure of 8/g"time to the play of janggu (atraditional Korean musical instrument) as it was often enjoyed by famous folk-song singers. The original way to song the folk song is characterized by making its refrain one-beat shorter than the length of the part.