The invention discloses a socket capable of being automatically controlled to be opened and closed. The socket comprises a socket body, wherein the periphery of an outer wall of the socket body is fixedly connected with retaining nuts; an induction lamp is arranged on the outer wall of the socket body; an indicator is arranged on the outer wall of the socket; a jack is arranged in the outer surface of the socket; one side of the socket is fixedly connected with a mounting shell; a mounting groove is formed in the outer wall of the mounting shell; one side of the mounting shell is fixedly connected with a safety device; the safety device comprises a mounting plate; threaded holes are formed in the periphery of the outer wall of the mounting plate; the outer wall of the mounting plate is fixedly connected with a connecting ring; and the other end of the connecting ring is fixedly connected with a safe protective shell. Through the arrangement of the socket, the induction lamp, the indicator, the mounting shell and the safety device, the socket is reasonable in design and simple in structure, the number of volts of voltage can be observed when the voltage is unstable, the socket can be automatically powered off in an electric shock and the condition that a user accidentally extends a hand into the jack to cause the electric shock is avoided.