Abstract：
For the time being, electronic total station is comprehensively used in measurement control, construction lofting, detail measurement and deformation observation. Most coordinate data are put in manually, but calculation and input of coordinate data are relatively complex when there are a lot of points and the calculation accuracy may also be influenced. The coordinate share and automatic upload between CAD drawing and total station was researched to cancel manual calculation and input, simplify coordinate calculation and data input, as well as improve working efficiency and accuracy.
