The core task of the comparison literature is to explore the similarities and differences between different cultures, literary traditions, literary schools, and literary forms, as well as the mutual influence and evolution between different literary traditions and literary schools. The research methods of the comparison literature include cultural comparison, literary comparison, form comparison, theme comparison, style comparison, and so on. Through comparison, authors can have a deeper understanding of the characteristics and styles of literary creation in different cultural backgrounds, better understand the meaning and extension of different literary traditions and schools, and also better understand the connection and influence between different literary works, as well as the literary exchanges and interactions between different cultures. The core task of the study of the comparison literature is not only to help readers better understand the literary traditions and schools of different cultures, but also to promote the development of literary creation and the study of literary theory.