Abstract: There are two methods to get the vector Chinese characters:Digitizing and Raster-to-vector Conversion.After a general view of these methods,a new Raster-to-vector Con-version method based on the Minimal First Conversion of 8-neighbor Adjacent Matrix is derived.In order to efficiently solve the boundary conversion of a dot Chinese character,the method of Enlarged Matrix is proposed.Some other Raster-to-vector Conversion methods(i.e.distance transformation,skeleton,border following,ect) are also discuss-ed.The formulas of geometric transformation for locating and directing the characters in a drawing is given by means of an azimuthal angle.Using above conclusions,the author and his colleagues have successfully designed the online and offline functions of"automatic filling Chinese character and Chinese report" on INFORMAP Ⅲ graphic software.That software is made from the Synercom Technology Inc.of U.S.A without providing any Chinese character function yet.The experiments show that the above methods can not only be applied in automatic filling Chinese characters in any computer's graphic drawings,but also in Chinese characterizing graphic softwares and processing scan images.