唐代,楷书字体发展到极致。“宋四家”的崛起,使得行书在北宋得到了空前的创新和发展,加上宋代雕版印刷体的大力推广,渐渐退出历史舞台。元初赵孟頫“崇古”观念的提出以及鲜于枢、邓文原等人的追随,使楷书在元代得到中兴。在字体的演变过程中,以实用性为主要发展动力,不断地推进字体的演变。而在这一时期中,楷书的发展从孕育到完善经历了很漫长的过程,直至“尚法”的唐代,将楷书这一字体发展到极致。逮及宋代,国运与文化的差异,影响了宋代人的审美标准和取向,“宋四家”的崛起,使得行书在北宋得到了空前的创新和发展,加上宋代雕版印刷体的大力推广,使得原本一直以实用著称的楷书发展 Tang Dynasty, regular script fonts to the extreme. The rise of the “Song Dynasty Four” made the Xingshu get an unprecedented innovation and development in the Northern Song Dynasty. With the vigorous promotion of engraving printing bodies in the Song Dynasty, it gradually withdrawn from the stage of history. The beginning of the Yuan Dynasty Zhao Mengfu “Chong ancient ” concept put forward and less than pivot, Deng Wenyuan and others follow, so that the regular script was ZTE. In the evolution of fonts, practicality as the main driving force, and constantly promote the evolution of fonts. During this period, the development of regular script went through a very long process from birth to perfection, until the “Shang Fa” Tang Dynasty, the font of regular script was developed to the extreme. In the Song Dynasty, the differences between national culture and culture influenced the aesthetic standards and orientations of the Song Dynasty. The rise of the “Four Songs of the Song Dynasty” led to the unprecedented innovation and development in the Northern Song Dynasty. In addition, Promotion, making the original has always been known for the development of practical regular script