The main form of expression of Song Dynasty literature was Ci. Ci was one of the most influential literary forms in the history of Chinese literature and one of the important representatives of Song Dynasty literature. Ci originated in the Tang Dynasty, but it was developed and perfected in the Song Dynasty, becoming one of the main forms of literature in the Song Dynasty. Ci was featured by concise language, beautiful rhythm, and rich emotions. It often appeared in the form of poetry. There were many famous poets in the Song Dynasty, such as Su Shi, Xin Qiji, Li Qingzhao, and so on. Their works were regarded as the classics of Chinese literature.