HEP computing in Korea

The current status of High Energy Physics (HEP) computing system and plan of HEP data grid in Korea are reported. The main infrastructure is located at the Center for High Energy Physics at Kyungpook National University for the experiment of Compact Muon Solenoid (CMS), Collider Detector at Fermilab (CDF), Belle and the Alpha Magnetic Spectrometer (AMS). Recently, we have been concentrating on computing in CMS experiment. The current status of regional data center in Korea and Service Challenge 4 (SC4) for CMS experiment are also reported.