The invention relates to an electronic key jack-type five-prevention socket which comprises a single-chip microcomputer, a voltage-stabilized power module and a jack-type socket body. The number of poles of the jack-type socket body is at least four, and the four poles are connected to a serial communication port of the single-chip microcomputer, power output of the voltage-stabilized power module and a measuring pin and a grounding pin of the single-chip microcomputer respectively. The socket can be used in cooperation with a plug-type Bluetooth serial port electronic key, five preventions are controlled and a relay is allowed to be switched on in the mode that the electronic key and the socket conduct serial port communication, a device number containing specific serial port message is sent to the socket through smartphone five-prevention APP software, and therefore the function of preventing misoperation is achieved.