Sun De Qian discussed the development of parallel prose in the Six Dynasties in his Liu Chao Li Zhi. He had specific views on the writing style in that era, the style of the literary works, and the evaluation of the writer's works. Sun De Qian's criticism has a clear train of thought with excellent reference value, which plays a crucial and significant part in learning about the Six Dynasties. From the perspective of literary history, this thesis examined aesthetic characteristics, literature development, and Sun De Qian's critique to manifest the theoretical significance of Liu Chao Li Zhi in the literature of the Six Dynasties.