Abstract: The first part of the article briefly describes the new technology of surveying and mapping, and emphasizes the application advantages of the new technology of surveying and mapping in engineering surveying; the second part is from photogrammetry technology, remote sensing surveying and mapping technology, global positioning technology, 3S integrated surveying and mapping technology, map Digital technology and other commonly used new surveying and mapping technologies at this stage are the entry point, expounding the specific application of new surveying and mapping technologies in multiple engineering surveying scenarios; the third part proposes to actively expand the underwater application of surveying and mapping technology and promote the widespread use of drone technology The optimized application path and development of these new surveying and mapping technologies in engineering surveying are aimed at further strengthening new surveying and mapping technologies and promoting the continuous upgrading of engineering surveying work.