Household electrical appliance and button structure thereof

The invention discloses a household electrical appliance and a button structure thereof. The button structure comprises a metal part, a first pressure sensing part and a processing part, wherein the metal part comprises a button area, the first pressure sensing part is arranged corresponding to the button area and used to sense a pressure change value of the button area, and the processing part is connected with the first pressure sensing part. The button structure uses the metal part, so that the button structure is diverse to satisfy user requirements; and the processing part can identify operation of the button area by using the first pressure sensing part to sense the pressure change value, and the household electrical appliance is controlled to run corresponding functions.