The utility model discloses a high -tension electricity minor direct current breaker's light -operated switching circuit, contain power supply circuit, divide the multistage cascaded coupling transformer to both sides, the control source, a control circuit arranged in the inner cavity of th, photosensitive diode, IGBT, LED lamp and control switch, the power supply circuit output is connected with dividing the coupling transformer who is located the intermediate position to the multistage cascaded coupling transformer of both sides, every coupling transformer is connected with a control source, control circuit and control source, photosensitive diode and IGBT connect, LED lamp and control switch are connected and put out and LED lamp and photosensitive diode one -to -one by control switch control is bright. The utility model discloses simple structure, the flexible operation, a device just can be suitable for the circuit that the difference required the parameter, and is more convenient in the use.