Abstract: With the continuous development and use of modern technology, surveying and mapping technology has been greatly developed. Modern digital surveying and mapping technology is becoming more and more intelligent, and more and more technologies are applied to the measurement of earth and stone. More and more people pay more attention to the measurement and calculation of earth and stone.The traditional measurement methods include visa records, RTK measurements. But the credibility of visa records is uncertain, and RTK measurement takes a long time. Then the consumption level UAV modeling method is used to estimate the volume of earthwork, which has the characteristics of short time data acquisition, strong operability and low investment. In this paper, the application of Sirius PRO (Sirian) fixed wing UAV platform and Virtual Surveyor software for the large scale topographic map of 1:500 is discussed and analyzed.

Key words: low altitude photogrammetry, fixed wing UAV platform, large scale topographic map, southern CASS