A socket for electrical component capable of pressing and fixing an electrical component,A pressing part includes a first cam rotatably supported by the body part, and a second cam supported by the first cam An elevating part includes a cam locking part provided on a rotational orbit of the second cam. A tip of the second cam is formed such that the tip of the second cam passes over the cam locking part when the elevating part is moved down by making the tip of the second cam abut against the elevating part and rotate, and the tip of the second cam is locked by the cam locking part so as to prevent the rotation when an attempt is made to perform the rotation in the opposite direction. The rotation in the opposite direction is enabled by moving the second cam in the radial direction of the rotation.