The application of air ground collaborative systems in military, rescue, monitoring, and agricultural fields is increasing. Research is being conducted on real-time mapping technology based on drone orthophoto videos. By using drones to fly at low altitudes, high-resolution optical terrain images under camera orthophoto conditions are obtains in real time, and transmitted to ground command and control terminals for real-time high-precision geometric correction and stitching of sequence images. This generates a complete image map with geographic coordinates covering the measurement area. Compared with traditional drone based map acquisition and application, it has high timeliness, comprehensive information, and high accuracy. At the same time, the generated image map has a fast browsing and display function, creating conditions for subsequent autonomous navigation and path planning based on image maps.