The term “performance superposition”applied in this paper describes a Qurur-un Üliger oral performance practice,in which the Qururči superimpose the performance contents that symbolize characteristics of a school over the basic tune framework.For the reason of this idiomatic practice existed in the process of stylistic formation and inheritance and by means of the method of layered analysis,this paper interprets separately the explicit -surface and implicit -deep school characteristics from four aspects of auditory perception,music forms, lyrics layout and life experience in terms of the research on singing styles of three major schools’ leading performers in Horqin Right Middle Manner of Hinggan League, Inner Mongolia Autonomous Region.