This paper introduces the application of UAV photogrammetry in different
stages of architectural heritage protection, such as the investigation of
the current situation around architectural heritage, the acquisition of
site information, and the architectural heritage revitalization design. The
collected data is processed not only to provide reference data support
for cultural relics conservation projects, but also as a reference for long-
term heritage monitoring in archives. With the continuous development of
the field of UAV technology, the working methods and ideas introduced
in this paper will become an important scientific and technological
protection means in the protection of architectural heritage
