Percussion music in Donghaean Byeolsingut shows a unique aesthetic feature of Korean music by a colorful and complex rhythm that accompanies variations. This paper analyzes the playing style of the Jangdan such as Puneori, Deureonggaengi, Samojang, Donsalpuri, Sajapuri which is used there and presents its variation method and its types. They can be distinguished as follows. The first type is a change in beat structure which can typically be referred to as hemiola. Next, the combination of musical figure and its modification can be mentioned. It means the relocation of the figures and the resulting recombination of the phrase accompanied by their variation. In addition, a timbric variation is also presented. It is caused by the way to beat the Janggu and the selection of the stick every moment. Finally, a fractal structure is found from the examples of Deureonggaengi, so that some of the musical phrases belong to the variation type which appropriately reflects the fractal structure of Jangdan.