Dai Wangshu, one of the most artistic and most penetrating poets among Chinese poets since the May 4th Patriotic Movement, is the representative figure of Chinese modernist symbolism poetry. He inherits the luster of the artistic conception of Chinese classical literature, and adopts the symbolic conception of the French symbolism, to create the modernist poetic style. His masterpiece A Lane in the Rain, based on the inheritance of Chinese classical euphemistic poetry style, creates a picturesque lyric space with symbolic images, and naturally reveals the inner world between the lines, making the readers have artistic resonance while feeling the beauty of the poetry and merging with the poet. This thesis, taking A Lane in the Rain as the research text, explores the artistic conception of Dai Wangshu's poetry. This thesis firstly explains the artistic conception and the beauty of artistic conception, and subsequently, specifically explores the beauty of artistic conception of Dai Wangshu's poetry in A Lane in the Rain from the two aspects of flowing pictures and the perfect combination of symbolic images.