李白与杜甫在中国诗歌史上占有着重要的地位,因此后世学者将他们“李杜”并称。本文就“李杜”并称缘起、发展进行了阐述,并且进一步简要评析了唐诗分期问题中关于杜甫所处年代的学说,从而提出了杜甫应该归属于盛唐的论点。 Li Bai and Du Fu occupy an important position in the history of Chinese poetry, so later scholars will call them “Li Du” and said. This article elaborates on the origin and development of “Li Du”, and further briefly analyzes the doctrine about the age of Du Fu in the staging of Tang poetry, and puts forward the argument that Du Fu should belong to the prosperous Tang Dynasty.