Abstract：As to some of Liunosuke Akutagawa's popular novels,this article makes systematic comparison and classification in the exposing of the deep side of human nature,pointing out that the research by Liunosuke Akutagawa's to the fringe of human nature has undertaken three steps in the improving process.Firstly,it takes off the masks of human nature,then suspects the "Conscience" of human's self-feeling,in spite of indulging oneself in pain and suspicion.Finally it comes to the highest step,which expose human nature self-improves in the procedure of self-beating,until showing the tragic contradiction of human nature itself,and it makes an analysis by layers of every step of human nature itself.
