The present invention relates to a boring machine having differential global positioning system receiver (31) for underwater rock and boring method thereof, new boring technology - a satellite navigation device orients the accurate position of a target - is brought to the underwater boring technology. A differential global positioning system (DGPS) receiver (31) is provided at the body of a boring machine (20) that is installed at the central opening of a self elevation platform (SEP) barge, the location of the boring machine (20) is set to concentricity of the target boring position, and the position of the hull can be controlled without any movement of the boring machine (20). Then, the barge quickly moves to the next target boring location owing to the operation of a hull moving means so that the construction efficiency of the boring work can be enhanced. 101-1205 Eden Geumho Town,680-12 Dongsam 1-dong,Yeongdo-gu,Busan 606-807, Republic of Korea 2)KIM,Jong Seol 3)KANG,Dae Woo BAEK,In Suk 783/MUMNP/2006 A 783/MUMNP/2006 INDIA 2009-03-20T11:23:35Z 2007-03-02 2006-07-06 318062 2004-11-11 PCT/KR2004/002915 E21B47/00 WO/2005/054628 BAEK,In Suk, KIM,Jong Seol, KANG,Dae Woo 3626 0 466 Republic of Korea 2003-12-06 10-2003-0088353 2007-03-02 0 22NVSDtI 2009-04-30T18:40:39Z 86278 BAEK,IN SUK, KIM,JONG SEOL, KANG,DAE WOO 86277 BAEK,IN SUK 50139 /app_images/6/8/7/5/7eei_R2384.png 783/MUMNP/2006 6277 2008-08-29 221032 1.BAEK,iIn Suk 2.KIM, Jong Seol 3. KANG, Dae Woo,KIM,Jong Seol,KANG,Dae Woo 2kr8QXDq