Abstract: A magnetron for supplying a microwave and an ion burner are provided in an incinerator main body, and the microwave from the magnetron and ion flame from the ion burner are caused to resonate to create a high temperature state in the incinerator main body, whereby waste in the incinerator main body is decomposed and melted by positive (+) and negative (−) activated ions. A tokamak is also provided on the outer side of the incinerator main body so that charged particles (radiation) and electromagnetic wave in the incinerator main body may be reflected and gathered at the center of the incinerator main body to increase an ion concentration to thereby increase a plasma concentration, thereby achieving an improvement in terms of decomposition efficiency. Both or one of quartz and an acceptor level additive is mixed with a furnace wall of the incinerator main body.