A button device, comprising: a manipulation structure including: a plurality of brackets each having an elastic segment, a fixing segment, and a placing segment, wherein the fixing segment and the placing segment of each of the brackets are connected to two opposite ends of the elastic segment; and a plurality of transparent keys respectively fixed to the brackets and each including: a press portion fixed to the fixing segment of the corresponding bracket, wherein the press portion has a touch surface arranged away from the corresponding bracket; and an abutting portion extending from the press portion along a displacement direction that extends away from the touch surface, wherein a width of the abutting portion is less than that of the press portion, wherein the touch surface of each of the transparent keys is configured to move along the displacement direction by being pressed, so that the elastic segment of the corresponding bracket is deformed to generate an elastic force; and a touch-control screen having a touch-control region, wherein the manipulation structure is arranged corresponding in position to the touch-control region, and the abutting portion of each of the transparent keys faces toward and is spaced apart from the touch-control region, wherein a part of each of the transparent keys facing the touch-control region is configured to show an icon of the touch-control region, and the touch surface of each of the transparent keys is configured to be pressed so as to move the abutting portion to abut against the corresponding icon. a manipulation structure including: a plurality of brackets each having an elastic segment, a fixing segment, and a placing segment, wherein the fixing segment and the placing segment of each of the brackets are connected to two opposite ends of the elastic segment; and a plurality of transparent keys respectively fixed to the brackets and each including: a press portion fixed to the fixing segment of the corresponding bracket, wherein the press portion has a touch surface arranged away from the corresponding bracket; and an abutting portion extending from the press portion along a displacement direction that extends away from the touch surface, wherein a width of the abutting portion is less than that of the press portion, wherein the touch surface of each of the transparent keys is configured to move along the displacement direction by being pressed, so that the elastic segment of the corresponding bracket is deformed to generate an elastic force; and a plurality of brackets each having an elastic segment, a fixing segment, and a placing segment, wherein the fixing segment and the placing segment of each of the brackets are connected to two opposite ends of the elastic segment; and a plurality of transparent keys respectively fixed to the brackets and each including: a press portion fixed to the fixing segment of the corresponding bracket, wherein the press portion has a touch surface arranged away from the corresponding bracket; and an abutting portion extending from the press portion along a displacement direction that extends away from the touch surface, wherein a width of the abutting portion is less than that of the press portion, a press portion fixed to the fixing segment of the corresponding bracket, wherein the press portion has a touch surface arranged away from the corresponding bracket; and an abutting portion extending from the press portion along a displacement direction that extends away from the touch surface, wherein a width of the abutting portion is less than that of the press portion, wherein the touch surface of each of the transparent keys is configured to move along the displacement direction by being pressed, so that the elastic segment of the corresponding bracket is deformed to generate an elastic force; and a touch-control screen having a touch-control region, wherein the manipulation structure is arranged corresponding in position to the touch-control region, and the abutting portion of each of the transparent keys faces toward and is spaced apart from the touch-control region, wherein a part of each of the transparent keys facing the touch-control region is configured to show an icon of the touch-control region, and the touch surface of each of the transparent keys is configured to be pressed so as to move the abutting portion to abut against the corresponding icon.