Abstract: Positions and magnitudes of stars are important to astronomical researches and space navigations.The data (such as those for position and brightness) extracted from CCD images of a dense star field usually need to be fast matched to a stellar catalog. A variety of object matching algorithms have been developed. In this paper, we compare two most recent matching algorithms: i) a method based on (positional) vectors;ii a method based on quantitative characteristics of relative stellar positions as described by the radii and circumferential directions from a chosen center. Through matching the CCD images taken with the 1 m telescope of the Yunnan Observatory,we find that the method based on vectors is faster and is thus practically more effective.