Abstract:Orthographic drawing and choropleth maps of traditional architecture can not only be preserved as precious materials in the protection and research of ancient cultural relics, but also can be built according to these maps to restore the original appearance of ancient cultural relics once they are destroyed. Close-range photogrammetry is a new method to provide plane, elevation, section, contour map and other maps for ancient cultural relics. Basically achieved high precision, complete, detailed, reasonable expression.