Concentrations distribution of the Cu, Hg, Cd, As in drinking water in the 8 city districts and 10 counties in Beijing was studied based on a total of 120 random samples. Health risks associated with 4 metals in drinking water were assessed using USEPA health risk assessment model. The results showed that the concentrations of the heavy metals in drinking water in Beijing ranged from 0 81 to 6 96μg·L -1 for Cu, 0 34~0 82μg·L -1 for Cd, 0 10~0 74μg·L -1 for Hg and 0 19~3 02 μg·L -1 ...