There were many calligraphers in ancient China, among which there were four more famous calligraphers, namely Ouyang Xun, Liu Zhenqing, Liu Gongquan and Zhao Mengfu, namely Ou Ti, Yan Ti, Liu Ti and Zhao Mengfu. representative of the body. Ouyang Xun has many masterpieces of calligraphy handed down from generation to generation, and his greatest contribution is to summarize the regular script of previous generations and form his own unique European style. Yan Zhenqing is the most innovative calligrapher among the four calligraphers. He is able to draw on the strengths of hundreds of calligraphers to form his own unique style of calligraphy. Yan Zhenqing is not only good at regular script, but his cursive writing is also unique. Most of Liu Gongquan's handed down calligraphy was copied by later generations of calligraphy practitioners, and it has extremely high artistic value. His handwriting is clear, strong, and unique. Later generations called Liu Gongquan's regular script and Yan Zhenqing's regular script "Yan Jin Liu Gu" together. Among Zhao Mengfu's calligraphy, Xia Wei is famous for his regular script and running script. Gentleness and elegance are the biggest characteristics of his calligraphy. (Introduction)