Switching power supply control circuit

The utility model provides a switching power supply control circuit, which relates to the technical field of control circuits and comprises a machine body, an adjusting assembly and a clamping assembly, a circuit board is arranged in the machine body, a switch is arranged on the back of the machine body, a lithium battery is mounted on one side of the top of the circuit board, and an adjusting bin is arranged on the other side of the top of the circuit board. An adjusting block is slidably connected into the adjusting bin, a conductive block is arranged in the adjusting block, two wiring pipes are arranged on one side in the machine body, high-voltage wires are connected into the wiring pipes, and an adjusting assembly used for changing the position of the adjusting block is arranged in the adjusting bin. According to the control circuit, the high-voltage circuit is switched on and switched off through the adjusting block, direct contact adjustment between a user and the high-voltage circuit is avoided, the r