In recent years,with the realization of aerial photogrammetry by unmanned aerial vehicle(UAV) carrying a variety of sensors and the development of computer science and technology,aerial photogrammetry technology and products have become more and more widely used to serve a variety of industries.Several drones from DJI are used to carry out aerial survey equipment in Minjiang,Jinsha,Tuojiang,and Jialing Rivers in Sichuan Province for the application of water transportation engineering survey projects.The principle and process of the drone aerial surveying production operation are pointed out.The quality and accuracy of aerial survey products are evaluated,such as photographs,videos,digital orthophotographs(DOM),digital surface models (DSM),point cloud,etc.Their new applications in water transportation engineering survey scenarios are analyzed,such as land topographic map survey,water topographic map survey,hydrological data acquisition,and power line overhang height capture.The future development of UAV aerial survey technology is looked forward to.The UAV aerial survey technology product is more advanced than traditional operation methods,and can better serve the cause of water transportation engineering survey.