Disclosed are an antibacterial glass composition, a method for preparing antibacterial glass powders using the same, and a home appliance including the antibacterial glass powders. The antibacterial glass composition contains: 30 to 70 wt % of P2O5; 10 to 30 wt % of MgO; 10 to 35 wt % of at least one of ZnO and WO3; 0.3 to 1 wt % of MnO2; and 0.4 to 2 wt % of Ag2O, wherein the antibacterial glass composition is free of K2O, Na2O, and CaO. Accordingly, provided is a phosphate-based antibacterial glass composition that exhibits excellent durability and antibacterial performance, even without including a melting point-lowering component and a structural strengthening component that cause side effects.