清人潘德輿著有《李杜詩話》三卷，其卷二、三論杜甫其人其詩。潘氏論述，習引用眾人說法，或加以批駁，或加以讚賞；批駁時則援引實，讚賞時則又加以深入論述，十分具有價值。本文從潘氏論杜甫詩的部分作一歸結，將潘氏所論分為論詩體、創作、風格、成就等方面談之；詩體分為論古詩、樂府、絕句、律詩、排律；論創作分從讀書與創作技巧兩點言之；論風格則以杜詩的雅俗文質問題為討論：再者，論杜詩成就，分為杜詩淵源、儒家思想與大成方面言之。

Pai-Te-Yu in Ching dynasty wrote “Li-Tu poem criticism” three volumes. Pai discussed Tu-Fu himself and his poem in volumes two and three. Pai’s discussion used to citing other’s beliefs. Sometimes he would comment on those beliefs and sometimes he would show his admiration. When commentating, he would cite the examples form the text. Then admiring, he would go deep into his discussion. Above all Pai’s discussion on Tu-Fu has high value on criticism. This paper is going to conclude Pai’s discussion of Tu-Fu’s poem and divided into four discussion into: ancient poetry; ballads in Han dynasty; Tang’s short poem; regulated-verse and regulated poetry. In creativity includes reading and artistic writing. The tone includes Tu-Fu’s refined or vulgar language. Finally, this paper is going to discuss the achievement of Tu-Fu’s poem form his origin; Confucius philosophy and universal issues.