The refrigerator includes a thermally insulated box with a first board, a plasma device and a pipeline, all of which are embedded in the first board. The plasma device includes an atomizer with a water tank and a first fan, a plasma generator and a pipeline. The plasma generator is hermetically connected to the atomizer and has an electrode device. The electrode device includes a dielectric plate and a plurality of electrode rods embedded therein. The electrode rods are interlacedly electrically connected to an AC source. The pipeline is hermetically connected to the plasma generator and composed of an inlet section with an inlet, an outlet section with at least one outlet and a middle section communicating with the dielectric plate. The inlet is provided with a second fan.
