To appreciate poetry, one needed to use the knowledge of literary theory, including literary history, literary schools, literary trends, poetry forms, rhetorical devices, poetry theme and meaning, etc. Here are some ways to appreciate poetry using literary theory: 1. Understanding the history of literature: Understanding the development of literature in different historical periods, including literary schools, literary trends, and important helps to understand the styles and characteristics of poetry in different eras. 2. Study literary schools and literary trends: Understanding different literary schools and literary trends, including romanticism, realism, realism, symbolism, post-realism, etc., helps to understand the form and content of poetry. 3. Analyzing the form of poetry: Understanding the form of poetry, including rhythm, rhythm, meter, rhetoric, etc., helps to understand the language and musicality of poetry. 4. Study the rhetorical devices of poetry: Understanding the rhetorical devices of poetry, including metaphor, personification, exaggeration, contrast, etc., helps to understand the language and image of poetry. 5. Analyzing the theme and meaning of the poem: Understanding the theme and meaning of the poem, including love, friendship, nature, life, etc., will help you understand the emotions and thoughts of the poem. Comparing the styles and characteristics of different poems: Comparing the styles and characteristics of different poets helps to understand the variety and richness of poetry. 7. Comprehensive Appreciation of Poetry: Comprehensively apply the knowledge from all aspects above to appreciate poetry and understand the meaning and emotions of poetry. It should be noted that although the knowledge of literary theory can help to understand poetry, the appreciation of poetry requires personal experience, feelings, and understanding. Therefore, when appreciating poetry, one should keep an open mind and try to interpret poetry with one's own understanding and feelings to obtain aesthetic pleasure.