本文的研究工作受到江苏省自然科学基金项目(项目编号:BK2007050)的资助。 Research and Implementation of High-precision Curve-outline Generation System for Jiaguwen Abstract Jiaguwen is one of the rarest culture heritages in China, and it possesses of most important value of culture heritage protection and history research. With rapid development of science and technology, it is more advantageous to protect and inherit the rare Jiaguwen through digital processing. According to the related technology at home and abroad, a high-precision curve-outline generation system for Jiaguwen is designed and implemented in this paper. The implemented system can be used to extract Jiaguwen from the source Jiaguwen images and generate the high-precision curve-outline of Jiaguwen font. The major research content in this paper is as follows: 1. Combined with K-means cluster analysis method and the eight neighborhood technology, a method for Jiaguwen