Abstract: Multi-rotor unmanned aerial vehicle (UAV),as a kind of low cost,high precision,simple operation of the remote sensing image acquisition platform,has achieved good results in the traditional measurement of surveying and mapping,digital city construction,disaster emergency response applications etc.Taking the application of Topcon Falcon 8 eight-rotor UAV platform as an example,through the data analysis of multi-rotor UAV platform for low-altitude photogrammetry,we use Virtual Surveyor software to calculate the amount of earthwork in two periods and provide accurate data and powerful technical support for engineering management.

Key words: multi-rotor UAV platform, low-altitude photogrammetry, Virtual Surveyor software