The invention relates to a cadaster and real estate measurement eccentric prism and a method of resolving measuring point coordinates. The eccentric prism comprises a short prism rod, a small prism, a notch, a sighting rod, a sight, a telescopic long prism rod, a circular level, and a telescopic bolt; a prism operator places the prism rod horizontally with the tip abutted to a vertical target point and aligns with the vertical axis of a total station, and a measuring station measurer measures coordinates of the prism and calculates azimuth of the axis of the prism rod according to coordinates of a station setup point, coordinates of a prism point and a fixed distance between the prism to the sight and calculates coordinates of the target point according to the coordinates of the prism point and a distance from the target point to the prism center; the invention has the advantages that the influences of common prism placement error at a vertical target point and human instrument eccentric alignment error on measuring precision are effectively eliminated, the blocking problem of obstacles such as yard door piers and trees is solved, field operation data acquisition precision and efficiency are greatly improved, indoor operations employ a supporting eccentric resolving program, and it is possible to subject field operation acquisition coordinate files to one-off eccentric correction.