This dissertation aims to investigate the geomungo performing technique on the basis of Sangyongsan in Julpungryu. Julpungryu is a chamber ensemble which was performed by the literati of the late Joseon period. It is a suite comprising nine pieces and is used various geomungo performing techniques. The geomungo players express their musical ambience with these techniques. Therefore the same piece is performed different techniques according to the players. On the basis of this point, this study researched geomungo techniques which were used on Sangryongsan in Julpungryu through various player's performing. And It sought after player's musical character and significance of these character. First, I examined chapter division of Sangryongsan in Julpungryu according to players on the subject for ten kinds of musical book and musical recording tape. As a result, there are four group of chapter division of Julpungryu. Gungnip-gugakwon(國立國樂院), Iwangchik-aakbu(李王職雅樂部), Yu Changhwan, Chang Insik belong to first group and their chapter division is almost same. Iri-pungryu, Sin Kwaedong, Kim Yundeok belong to second group and succeed to Kim Gyeongnam who is effected geomungo music of Cheonbuk District. Im Seokyun, Cheong Gyeongtae belong to third group and Kim Gukp'a, Han Useok is fourth group. We could understand to relation to pass down Julpungryu through these chapter division of Julpungryu. Geomungo performing technique of Julpungryu according to players, I examined various geomungo performing technique used on Sangryongsan in Julpungryu. In playing Julpungryu with geomungo, there are Daejeom(大點), Igim, Tteul(뜰), Tteuldong(뜰동) techniques with right hand which holds Suldae. And There are Nonghyun(弄絃, vibration), Chuseong(推聲), Toiseong(退聲), Jeonseong(全聲) and Jachul(自出) techniques with left hand. Daejeom is used to emphasize the note or on the strong beat. Daejeom appeared 55 times in Han Useok, 10 times in Sin Kwaedong, 43 times in Im Seokyun, 44 times in Iri-pungryu, 41 times in Cheong Gyeongtae, 62 times in Chang Insik. Igim appeared 31 times in Han Useok, 10 times in Sin Kwaedong, 43 times in Im Seokyun, 44 times in Iri-pungryu, 41 times in Cheong Gyeongtae, 62 times in Chang Insik. Tteul appeared 35 times in Gungnip-gugakwon, 34 times in Iwangchik-aakbu, 43 times in Han Useok, 41 times in Yu Changhwan, 36 times in Sin Kwaedong, 46 times in Im Seokyun, 53 times in Iri-pungryu, 59 times in Cheong Gyeongtae, 54 times in Chang Insik. Tteuldong appeared 3 times in Chang Insik. Nonghyun appeared 8 times in Sin Kwaedong, 3 times in Im Seokyun, 3 times in Iri-pungryu, 12 times in Cheong Gyeongtae, 50 times in Chang Insik. Chuseong appeared 16 times in Gungnip-gugakwon, 4 times in Iwangchik-aakbu, 10 times in Sin Kwaedong, 4 times in Im Seokyun, 6 times in Iri-pungryu, 6 times in Cheong Gyeongtae, 20 times in Chang Insik, 7 times in Kim Yundeok. Toiseong appeared 33 times in Gungnip-gugakwon, 5 times in Iwangchik-aakbu, 5 times in Han Useok, 3 times in Yu Changhwan, 14 times in Sin Kwaedong, 7 times in Im Seokyun, 5 times in Iri-pungryu, 33 times in Cheong Gyeongtae, 20 times in Chang Insik, 12 times in Kim Yundeok. Jeonseong appeared 6 times in Gungnip-gugakwon, 9 times in Iwangchik-aakbu, 8 times in Yu Changhwan. Jachul appeared 9 times in Gungnip-gugakwon, 8 times in Iwangchik-aakbu, 8 times in Han Useok, 9 times in Yu Changhwan, 16 times in Sin Kwaedong, 18 times in Im Seokyun, 20 times in Iri-pungryu, 18 times in Cheong Gyeongtae, 25 times in Chang Insik.