Provided is an electromagnetic wave reduction apparatus for reducing an electromagnetic wave generated from a thermoelectric element. The electromagnetic wave reduction apparatus according to the present invention includes an electromagnetic wave sensing unit connected to a thermoelectric element and sensing an electromagnetic wave, an electromagnetic wave detecting unit detecting whether the sensed electromagnetic wave is greater than a reference value, an electromagnetic wave reduction circuit unit reducing the electromagnetic wave in response to an electromagnetic wave reduction control signal, and a circuit operation control unit generating the electromagnetic wave reduction control signal according to the detection result.