Map projection method using remote sense map tool

The invention relates to a map projection method employing remote sensing map tool which belong to the technical field of advanced manufacture and automation. The method includes step of reproducing known urban construction coordinate system on a remote sensing map by employing a distance measuring function of the remote sensing map tool and selecting a projection control point; using a latitude and longitude measuring function of the remote sensing map tool to measure earth latitude and longitude of the marked projection control point on the remote sensing map and record; obtaining projection parameter according to the urban construction coordinate and the earth latitude and longitude of the projection control point; obtaining projection error of map projection by utilizing urban construction coordinate of origin of the urban construction coordinate system; and optimizing the projection parameter to obtain optimal projection parameter matrix under current condition according to the projection parameter matri