Key structure and mobile terminal

The invention provides a key structure and a mobile terminal. The key structure comprises a key and a supporting part, wherein a conducive base is arranged on the inner side face of the key; the supporting part is positioned in the mobile terminal; the first end surface of the supporting part is in contact with the conductive base; the second end surface of the supporting part is in contact with a switch in the mobile terminal, wherein the midperpendicular of the first end surface and the midperpendicular of the second end plane are non-collinear. According to the technical scheme, the non-collinear conductive base and switch are connected together through the supporting part; the force on the conductive base is smoothly transmitted to the switch by the supporting part, so that the switch can be moved to a preset position to further switch on a switch circuit; and in addition, the supporting part is elastic and can enable the key to spring back rapidly, so that the user experience is improved.