The invention discloses an electronic mutual inductor working power supply, which comprises: a direct-current power supply, a high frequency power supply circuit, a low-tension-side reactive compensation circuit, an electromagnetic coupling unit, a high-tension side receiving circuit and a constant load conversion circuit. The direct-current power supply supplies power for the high frequency power supply circuit. The high frequency power supply circuit is electrically connected with the low-tension-side reactive compensation circuit. The electromagnetic coupling unit comprises a sending unit and a receiving unit. The low-tension-side reactive compensation circuit is connected into the sending unit of the electromagnetic coupling unit. The high-tension side receiving circuit is connected into the receiving unit of the electromagnetic coupling unit. And the high-tension side receiving circuit is electrically connected with the constant load conversion circuit. In the invention, special design structure is used to realize high concentration transceiver of energy of electromagnetic coupling coils and reliable transmission of electric energy from the low tension side to the high-tension side can be realized through a special designed working circuit. Therefore, the invention is worth popularizing.