Key

The invention provides a key. The key comprises a pressing part, a base, an elastic sheet and a welding pin, the base is arranged along the periphery of the pressing part; the elastic sheet is connected with the pressing part and located on the first side of the base. The welding leg comprises a welding part and a connecting part, the welding part is arranged on the first side of the base, the first end of the connecting part is connected with the welding part, and the connecting part is inserted into the base. The key provided by the invention comprises the elastic sheet, the elastic sheet is arranged on the pressing part, and when an operator of the key presses the key, the elastic sheet can provide a certain resilience force for the pressing part, so that insufficient elasticity of the pressing part caused by too small thickness of the pressing part is avoided, the stroke of the key can be further shortened, and the service life of the key is prolonged. And the thickness of the pressing part can be further