This paper proposed a bidirectional AGV to UAV charging system based on information collaborative localization. By combining the mobile hotspots and networking functions of AGV and UAV devices, a bidirectional power supply mode and multiple levels is provided. In the application site, it can complete docking charging at any position based on information collaborative communication, enabling the system to achieve flexible power supply configuration between different devices. The bidirectional power supply principle is first modeled and analyzed, and then the analytical solution of output characteristics is derived according to the circuit equation. On this basis, the overall networking scheme and power regulation controller are designed based on the principle of rated charging. Finally, the effectiveness of this method was verified through data analysis and experiments.