Low-altitude unmanned aerial vehicle(UAV) technology has many defects, and GPS-supported aero triangulation is one of the breakthrough of this technology. With the aerial drones project of Argonne reservoir irrigation in Luoping County of Qujing City as a research background, we described the principle and operation procedure of the differential GPS aerial UAV technology. By using the full-control and partial-control distribution plan of monitoring points, the solution of the differential GPS was involved in aerial triangulation and compared with that of conventional aerial operation method. Furthermore, we gave several conclusions and recommendations for differential GPS aerial drone technology. The results show that the application of differential GPS technology could greatly improve the operation accuracy and efficiency of UAV.