Symbolism overtook France at the end of 19 and the beginning of the 20th century, and became popular in Europe and America, and then formed a late symbolism school with international influence in the 1920s and 40s. Later symbolism inherited and developed the tradition of early symbolism, making symbolism more perfect, deeper, wider and more modern. It still insists on expressing the "highest truth" in the heart by symbolic suggestion, and opposes over-emphasizing the freedom and infinity of subjective spirit and leading to over-abstraction. It is also opposed to overemphasizing the image and concreteness of objective things, which leads to blandness and meaningless. At the same time, he opposed the obscurity of early symbolism and advocated the unity of emotion and reason, subjectivity and objectivity, finiteness and infinity, thus forming his own uniqueness. Later symbolism jumped out of the small circle of personal feelings and tried to show the overall spirit of society and the times. In terms of creative methods, it is speculative and philosophical to develop from simple symbol to image symbol, from individual symbol to universal symbol that reveals universal truth, and from emotional symbol to perceptual rationality. The main achievement of symbolism in literature in the later period is poetry creation. Thomas eliot in Britain is the representative of late symbolism. William Butler Yeats (1865- 1939) is an Irish poet. On the basis of inheriting the early symbolism tradition, he introduced nationality and reality into the field of symbolism poetry. There are three factors in his mature poetry: realism, symbolism and philosophical poetry. Ye Zhi's famous poems include Blowing into the Island (1890), The Second Coming of Christ (192 1), Rita and the Swan (1923) and Sailing to Byzantium (1927). The poem "Sailing to Byzantium" symbolizes the spiritual exploration through going to Byzantium, and expresses the western world's aversion to material civilization and hope for the return of spirit and reason. The symbolic image of poetry is three-dimensional and clear, and the material image and the conceptual image are harmonious and unified, which is full of philosophy. Paul Valerie (187 1- 1945) is a French poet, and is known as "the greatest poet in France in the 20th century". I admired Poe and Malamei in my early years and was deeply influenced. In the book Pure Poetry, he argues that the ultimate of poetry is thought rather than object. His poems often express philosophical themes such as life and death, spirit and flesh, eternity and change with symbolic artistic conception. The long poem Graveyard on the Beach (1920) is his masterpiece. The poet in the poem pondered the problems of existence and disillusionment, life and death in the seaside cemetery, and came to the conclusion that the meaning of life lies in grasping the present and facing the future. Long poems skillfully use symbols such as sea, sun, white sail, cliff, iron fence and wind to express various philosophical concepts such as mystery and silence, absolute and eternal, holy spirit and believers, life and death. Poetry adopts classical form, with rigorous composition, strong musicality, implication and significance. This is Valerie's most philosophical and lyrical poem. In addition, The Young Goddess of Destiny (19 17) is also a famous poem of Valerie, and The Beauty of Fantasy (1922) is his short collection of poems. Lena Maria Rilke (1975- 1926) is an Austrian poet. While paying attention to the philosophy and musicality of poetry, he introduced exquisite sculpture beauty, and his creation changed from simple and direct subjective lyricism to accurate observation of objective things, from which he obtained intuitive images to symbolize people's subjective feelings. The representative works are Duinau's Elegy (1922) and Sonnet for Orville (1922). These two poems are intertwined with the poet's inner feelings of exploration, disappointment, fear and repentance in many obscure and bizarre objective images, which are very philosophical and have the beauty of sculpture and music. Maeterlinck (1862- 1949) is a Belgian playwright. His masterpiece, Jade Bird (1908), tells the story of two brothers and sisters looking for the Jade Bird, which shows his optimistic attitude towards reality and the future. Jade bird not only symbolizes the infinite mystery of nature, but also symbolizes the happiness of mankind. With the help of symbolism, the whole play spreads and explains abstract and profound concepts in a beautiful fantasy, which has a fairy-tale aesthetic feeling. Ezra pound (1885- 1972) is an American imagist poet. In his early years, he highly praised China's classical poems and was deeply influenced. He advocates replacing the emotional expression between subject and object with an objective and accurate image, and thinks that only an accurate image can find its "equivalent". For example, his short poem In a Subway Station (19 13) is the best example of this theory. Hugh Cervin moberly (19 17) is an important work of Pound, and his poems show a side of English cultural life in 19 19. The author uses a lot of quotations to express rich content, novel images and natural and fluent language. In addition, the long poem Chapters (19 17- 1959) plays an important role in Pound's creation. Pound's poetry creation and poetry theory promoted the development of British and American modernist poetry. Russia's Brock, balmont (1867- 1942) and Brou soff (18 73- 1824) are also important poets of late symbolism, as well as Brock XII (191.