Abstract: A structure of an electrical signal switch connector is provided, which includes an insulating housing, an elastic terminal, a fixing terminal and a shielding housing. The insulating housing is configured for receiving the elastic terminal and the fixing terminal respectively. The elastic terminal has an elastic arm with an opening. The fixing terminal has a fixing arm. The elastic arm of the elastic terminal elastically abuts against the fixing arm of the fixing terminal. A penetration hole of the insulating housing is configured for penetrating a terminal of a docking connector. The shielding housing covers on a surface of the insulating housing, such that the foreign substances in the environment are kept from attaching to the elastic arm of the elastic terminal.