Wireless power transfer technology has become more and more widely used in the field of drones which has the advantages of flexibility, reliability, and safety because of getting rid of the shackles of physical media. However, the current communication methods such as Zigbee, Bluetooth, and WiFi used in the UAV wireless charging system have a long access time, and there is a non-"point-to-point" transmission situation. It does not have the identity recognition function and cannot cope with the environment of multiple drones and multiple cabins. Therefore, there is an urgent need to propose a point-to-point near-field communication method that can identify the identity of drones to meet the needs of wireless charging scenarios for multiple drones. The separate channel transmission mode of synchronous transmission of energy signals has the characteristics of independent physical structure of two channels, which can avoid the interference of traditional communication methods and ensure the safety and reliability of charging. First, a multi-UAV identification method based on signal coils is proposed, and the cross-coupling effects between two sets of coupling mechanisms are simulated and studied, and a set of wireless power transmission applied to the simultaneous transmission of energy signals in the environment of multi-UAVs and cabins is designed. system. Finally, a UAV wireless power transmission system was built for experimental verification. The experimental results show that the identification of the UAV and the cabin can be quickly and effectively performed based on the signal coil.