Abstract: Tilting photogrammetry, as a new new technology of surveying and mapping, has been applied well in various fields, but the mainstream aerial photogrammetry aircraft used in surveying and mapping is expensive and complex. In this paper, a method of mapping large scale topographic maps using real 3D models made from tilted images captured by consumer-grade UAVs is presented. This method makes full use of the advantages of low cost, simple operation and advantages of automated modeling. It can produce high-quality and high-precision reality 3D models and 1:500 topographic maps in a short time. Practice shows that the method is simple to operate, the technical route is feasible, and the product accuracy meets the requirements of relevant standards and specifications.The overall efficiency of this method is better than that of traditional surveying and mapping methods,it has the significance of popularization.

Key words: consumer-grade UAV, tilting photogrammetry, reality 3D, 3D model mapping, large scale topographic map