Common point point location reconstruction method in coordinate transformation

The present invention discloses a common point point location reconstruction method in coordinate transformation. The present invention comprises two parts that: the first part is proposing a point location reconstruction and method for a common point in coordinate system transformation; and the second part is providing an algorithm for the point location reconstruction of the common point in two spatial axis systems. When conversion parameters of two matrixes are solved by using coordinates of more than three common points in the coordinate system, the common point can be assured to conform to a configuration of the two coordinate systems by adopting the point reconstruction, thereby improving accuracy of conversion parameters of the coordinate system.