The utility model relates to a power line remote control switch, in particular to a 433MHz radio frequency remote control switch. To solve the problems of large occupation space, poor operating sensitivity and incapability of timely disposal of emergency situations of a conventional power supply circuit on-off control device, the utility model provides a circuit on-off control technical scheme in which a 433 MHz wireless radio frequency transceiver and a single-chip microcomputer are used for receiving and decoding a remote control signal and a drive circuit and a magnetic hold switch are used for performing specific operation. The 433MHz radio frequency remote control switch is simple in design, easy to implement and low in power consumption, has two operating modes of local control and remote control, and is suitable for various electricity utilization occasions such as home furnishing, business, corporate and the like.