The elevator control power supply device is connected to the AC power supply of the elevator at the input end. After rectification and filtering, DC/DC conversion, the output end is a multi-channel DC power supply, which is respectively connected to the control circuit of the elevator. The "-" end is grounded, and the "+" end is connected to the safety circuit, contactor control circuit, microcomputer control circuit, and brake circuit of the elevator through fuses. The weight and volume of the device are reduced, the structure is simplified, and the efficiency is improved, which is conducive to the lightweight and miniaturization of the elevator control system.