Authors investigated the heavy metals in water, soil, rice and Urine of residents along the KUM river. Sample were analyzed by Varian Atomic absorption Spectrophotometer. The results obtained were as follows. 1. The Contents of cadmium and Lead in water were in the range of 0~2.15$mu$g/l, 0~4.29$mu$g/l, respectively. 2. The Contents of heavy metals in soil were in the range of 0.32~0.91mg/kg, 5.59~21.55mg/kg for Cd, Pb respectively. 3. Those in rice were in the range of 0.025~0.062mg/kg for Cd, Pb respectively. 4. The mean of Lead and Cadmium Concentration in Urine of residents of Munju Ri were 28.63$mu$g/l and 1.66$mu$g/l respectively, Those was also the highest level among the investigated group.