The utility model provides a drinking water combination sterilizing equipment, including little electrolysis sterilizer, heat source filter, the ultraviolet sterilizer who connects gradually through the water treatment pipe, the water treatment is managed including inlet tube, first intervalve, second intervalve, outlet pipe, be equipped with the filter rod in the heat source filter, external have a discharge valve. The utility model provides a pair of drinking water combination sterilizing equipment disinfects through little electrolysis and with the smooth catalytic oxidation of ultraviolet lamp in coordination, has effectively got rid of the heat source simultaneously, disinfects thoroughly, the running cost is low, stability height, safe and reliable, convenient operation just have the continuously ability of disinfecting, can ensure water safety.