This study was conducted to discribe characteristics of Non-point Source(NPS) Pollution discharge from a coal mining area in korea. Study Area is location at in Jeonduri, Dogyeup, Samchuck, Gangwon province where there is a coal mining workplace. Monitoring system was installed at a drainage channel and flow rate and water samples were collected from Sept. 2007 to Jun. 2008. Two and 5 rainfall events were monitored in 2007 and 2008, respectively. collected water samples sere analyzed with respect to SS, BOD, COD_Cr, COD_Mn, T-N, T-P, and TOC. It was obesrved that the runoff and water quality were largely influenced by mine drainage. Event Mean Concentration(EMC) of the analyzed indexes were : SS 86.35~94.90 kg/day, BOD 3.77~7.56 kg/day, COD_Cr 26.90~51.60 kg/day, T-N 1.45~2.12 kg/day, T-P 0.20~0.21 kg/day and TOC 1.83~2.33 kg/day in 2007 and SS 12.3~523.9 kg/day, BOD 3.9~56.1 kg/day, COD_Cr 18.8~97.8 kg/day, COD_Mn 5.7~38.6 kg/day, T-N 0.2~9.8 kg/day, T-P 0.0~2.9 kg/day and TOC 3.0~7.7kg/day in 2008. Also, NPS pollution loads were SS 1,368.8~1,984.1 kg/day, BOD 56.6~128.9 kg/day, COD_Cr 385.7~933.7 kg/day, T-N 23.4~44.5 kg/day, T-P 2.1~4.8 kg/day and TOC 0.7~4.4 kg/day in 2007. and SS 64.8~2673.1 kg/day, BOD 18.0~1080.2 kg/day, COD_Cr 52.9~1552.1 kg/day, COD_Mn 34.2~153.9 kg/day, T-N 1.6~55.8 kg/day, T-P 0.04~10.9 kg/day and TOC 15.3~125.9kg/day in 2008. As the study progresses in the future, runoff and pollution loads will be updated.