An apparatus for chemically toughening glass which can toughen the surface of the glass by inducing compressive stress on the glass surface through ion exchange and a method of chemically toughening glass using the same. The apparatus includes a chemical toughening bath which chemically toughens the glass; a transportation part which transports the glass from upstream of the chemical toughening bath through the chemical toughening bath to downstream of the chemical toughening bath; and a microwave generator disposed above the chemical toughening bath, the microwave generator radiating microwaves to the glass.