UAV remote sensing technology is an important means to obtain spatial geographic information through modern science and technology.It has a high level of automation and monitoring efficiency,and can quickly deal with related problems and efficiently complete surveying and mapping work in various environments.This paper takes UAV remote sensing technology as the research object,analyzes its system composition,operation process and application advantages,and expounds the application method of UAV remote sensing technology in surveying and mapping engineering measurement,aiming to promote the deep integration of UAV remote sensing technology and surveying and mapping engineering measurement technology system,and complete surveying and mapping measurement work efficiently.