Su Shi was implicated in the Yuan Party case. Not only was he not recorded in Xuanhe Pu Shu, but his calligraphy works were also destroyed. There are nearly 30 original calligraphy works handed down from generation to generation, among which Zhipingtie is the most important work in the early and middle period, followed by Wen Zhiming's Postscript of the Ming Dynasty, which was written by Su Shi in his thirties. By the middle period, many famous works appeared, such as "Qianchibi Fu" in regular script and "Several Poems in Sacrifice to Yellow Emperor". Du Fu's Alnus Poetry, Huangzhou's Cold Food Poetry, and the New Year's celebration and two letters from the people are all representative works in the middle period. Su Shi's regular script is rare. From several of his two works, Fu on a Thousand Red Cliffs and Sacrifice to the Yellow River, we can see that the script is quite different from the rigorous Tang Kai, not only the font is on the left, but also the brushwork is naturally informal. Some people say that his calligraphy is so beautiful on the left side and so withered on the right side with his wrist on and his pen lying down. Huang Tingjian defended it, saying that Su Shu was read according to "Hanlin's ink ruler". In other words, Su Shi does not emphasize the rigorous statutes of calligraphy, even regular script. Judging from the pen and ink, Su Shu is not "lying on the pen", but using the pen slightly lower and still taking the pen as the center, so he has the posture of winning the pen. His running script is bigger and smaller, with flesh and blood, bones and flesh, and there are both Yan Zhenqing and Yang Ningshi's parents.
Su Shi's works in his later years are relatively few, the most famous of which are Visiting a Folk Teacher, Crossing the Sea and Jiang Shang. Among them, "thank you teacher" is a handwritten note to Xie Julian, and the front part has been damaged. This article is included in Dongpo Collection, which is an important article for Su Shi to express his personal literary creation views. His calligraphy is old and vigorous, unlike Huangzhou's cold food poems, which are changeable. The postscript of Gu Wenbin in Qing Dynasty quoted the previous book review "Dongpo's words are elegant, graceful, bold, strict and arrogant" to praise the beauty of this calligraphy. Su Shi did not care about the gains and losses of ugly calligraphy, and gained the greatest freedom in academic creation, thus becoming a calligrapher in the Northern Song Dynasty.
When talking about his calligraphy, Su Shi said: "I can't write books with my heart, and I'm tired of asking for it myself." It is this pursuit of interest in calligraphy style orientation, this emphasis on calligraphy expression forms, and the efforts to enrich various contrast relationships that have influenced every generation behind him.
Huang Tingjian's running script is concise and powerful, with peculiar structure. Almost every word has some exaggerated long paintings, which he tried his best to send out and formed a brand-new structure writing, which had a great influence on later generations. The structure is obviously influenced by Huai Su, but the rhythm is completely different from that of Huai Su. Before him, roundness and fluency were the keynote of cursive script, while Huang Tingjian's cursive script was extremely dangerous in word structure and creative in composition. He often breaks the boundaries between words by shifting, making lines form new combinations and the rhythm changes strongly. Therefore, it has a special charm and has become an outstanding representative of calligraphy in the Northern Song Dynasty. Together with Su Shi, it has become the pioneer of a generation of calligraphy style. The so-called more artistic calligraphy in Song Dynasty by later generations is to change the style and structure of calligraphy and pursue the artistic conception and interest of calligraphy. Huang Tingjian's calligraphy and small seal script are represented by Fang, Wang Elder's epitaph and Lunan Shi Yizheng's epitaph. Calligraphy is fluent and elegant. There are Su Shi's Poems on Cold Food in Huangzhou, Fu Bo Temple and Song Fengge Poems. , are vigorous and calm, showing the characteristics of yellow books. Cursive scripts include Li Bai's Memories of Time Past, Zhu Shangtie, etc. With gorgeous words and elegant brushwork. On the basis of inheriting Huai Su's cursive script, it shows the uniqueness of Huangshu. He began to write from right to left, from the hidden front in the painting to the left pen, and then spread it out flat. There was no flat or evil, and the pen front was deliberately changed, and the pen front was hidden and clever, giving people the feeling of "painting bamboo as a book". Its structure comes from the news of Yan's Baguan Pavilion. The middle palace tightens, radiates outward from the center, and stretches horizontally, such as boating and supporting a boat. It is full of verve and momentum, and its personality characteristics are very obvious.