An aroma therapy for fountain comprises a fountain assembly, which comprises a water container having a bottom, a top opening and an interior, a aroma supporting member for support an aroma therapy dispensing unit, comprising a heating source adapted to generate a heat, a bowl adapted for reserving an aromatic substance therein, a base stand detachably and securely mounted on the aroma supporting member for holding the heat source, and a plurality of supporting frame extended upwardly from the base to securely sustain the bowl, such that the heat generated from the heating source disposed beneath the bowl could heat the bowl thereby diffusing the aromatic substance reserved in the bowl volatized into surrounding air.