沈德潜《唐诗别裁集》“以李杜为宗”，对李杜诗的定位别于历代最具代表性的唐诗选本，突出李杜地位，在李杜互补的思想下构建起重视杜甫、兼有李杜的诗歌审美理想。《唐诗别裁集》中其他重要诗人的选诗便是围绕此诗歌审美理想进行的。沈德潜注重寻绎李杜与这些诗人的诗歌源流关系。厘清沈德潜《唐诗别裁集》“以李杜为宗”的具体表现，以把握他的选本如何恢复李杜在唐诗中的核心价值。

Shen Deqian's Anthology of Tang Poems adopts the principle of "Taking Li Bai and Du Fu as the Tenet", distinguishing his positioning of Li Bai and Du Fu's poetry from the most representative Tang poetry anthologies of previous eras. This approach emphasizes the prominence of Li Bai and Du Fu, constructing an aesthetic ideal that prioritizes Du Fu while integrating poems of both poets under the concept of their complementarity. The selection of poems by other significant poets in the Anthology of Tang Poems revolves around this aesthetic ideal. Shen Deqian paid particular attention to exploring the poetic lineage and connections between Li Bai, Du Fu, and these poets. Clarifying the specific manifestations of Shen Deqian's principle of "Taking Li Bai and Du Fu as the Tenet" in the Anthology of Tang Poems is essential to understanding how his anthology reinstates the core value of Li Bai and Du Fu in Tang poetry.