“平曲”是指日本镰仓初期兴起的一边弹琵琶一边传唱《平家物语》的音乐形式。《平家物语》的平曲的表现形式具有一定的创造性,但在其传唱过程中又不乏变革性。通过分析平家物语中“平家”式的表现形式和“传唱”之间的关系,可以利用“平曲”作为素材来探究《平家物语》在文学上的成就问题,从而证明《平家物语》中“平家”式表现的成立。 “Flat song ” refers to the early rise of Kamakura, Japan while playing the pipa while singing “flat story” form of music. The flat form of “Pingtung Monogatari” has certain creativity, but there is no lack of transformability in its singing. Through the analysis of the relationship between “flat ” expression and “sung ” in Pinggu clan, we can use “flat song ” as the material to explore the literary achievements of “Pinggu language” in order to prove “Pinghu Monogatari” in the “flat home ” type performance was established.