To ensure a stable standard of antimony concentration in the drinking water source in Yangcheng Lake area, the water environmental capacity of antimony was calculated on the basis of the monitoring data of water environment status and the survey of pollution sources. The total quantity control scheme of antimony is also proposed. The results show that the emission rate of antimony in the study area is 12.38kg/d, of which 9.38kg/d should be reduced with a reduction rate of 75.8% to achieve the standard limit of 0.005mg/L in the specific project standards for centralized drinking water sources. The limiting value of the emission concentration of antimony is 20μg/L in the waste water of textile, printing and dyeing enterprises and in the tail water of centralized sewage treatment plants.