There are many ways to evaluate literary works. The theory of literature and art can be used to analyze and evaluate literary works. The theory of literature and art is a systematic and comprehensive theory that can be used to study literary phenomena, analyze the meaning and extension of literary works, and explore the development and changes of literature. Using literary theory to evaluate literary works can follow the following steps: 1. Understand the basic categories and concepts of literary theory. For example, literary theories often divided literature into narrative literature, lyric literature, argumentative literature, and so on. At the same time, the literary theorist would also pay attention to the social and cultural background, historical context, spirit of the times, and so on. 2. Make a detailed analysis of the literary works. The literary theorist would analyze the language, structure, plot, characters, and theme of a literary work to explore its intrinsic nature and characteristics. Through the specific analysis of literary works, we can better understand their literary value and ideology. 3. Comprehensively evaluate the literary theory and the actual situation of the literary works. When evaluating a literary work, it was necessary to combine the theory of literature and the actual situation of the literary work, taking into account its literary value, ideology, artistic achievements, and so on, so as to obtain an objective and fair evaluation. Using literary theory to evaluate literary works can help us understand literary works more comprehensively and deeply, and also help us evaluate and appreciate literary works better.