Song Ke's representative calligraphy works include Zhang Caoshu's Urgent Chapter, Cao Caoshu's Poetics of Tang and Song Dynasties, Qi Ji Quan Cuo Zhi and so on. His regular script mainly studied calligraphy and cursive script from Zhong You and Wang Xizhi, while Zhang Caoshu specialized in Wu's urgent chapter. Post-calligraphy and the resulting artistic retro tendency have a certain influence on him. He has repeatedly studied the cursive scripts of emperors and Ding Wu's pavilion posts, but he can create a new calligraphy style on this basis. His regular script is beautiful and elegant, vigorous and powerful, and his cursive script is steady and graceful, round and vigorous. The cursive script is especially special, with beautiful and symmetrical words and vigorous brushwork, which embodies the artistic characteristics of his calligraphy. In Song Ke's works, the ancient meaning of Zhong You's eight-point method, the crude cursive script of the ancient chapter and the beautiful cursive script of Wang Xizhi's running script have all undergone new changes. The fashion of the times is the main reason for this change. At the end of the yuan dynasty, he published books with him, and both of them worked in kanglizishan. The Biography of Nangong Life says that Song Ke changed three times in his life, and every change was good. Less Ren Xia, like fencing; When you are strong, you will go north to the central plains, and the result will be fruitless. So Dumen dyed Han, specializing in painting and calligraphy. It is because of this life experience that his heroism can be vented in calligraphy, thus forming a beautiful and vigorous style.
The ink of the Song Dynasty's Urgent Chapter is now in the Palace Museum in Beijing, with a total of 1900 words. This was written by Song Ke at the age of 44, and it has a strange process. Cao Zhang was revived in the Yuan Dynasty. After Deng, Zhao Mengfu and Kanglizi Mountain, they are counted. The elegance of Cao Zhang, Song Ke can make up for the deficiency of Zishan, while its broadness eclipses Ziang. This ink was first collected by the great collectors in Ming Dynasty.