This paper comments the viewpoint of Xunzi Human Good Argument that is proposed by Chiang chung kuei. According to the thinking of Chiang, we divide his thinking into 'The thinking source of Xunzi,' 'the reason why Xunzi criticize Mencius,' and 'what the Human Evil of Xunzi is' these three items to discuss and survey the drawbacks of inferring for the full book, respectively. The Chiang's thinking is arbitrary, most thinking are vicious circle, and he didn't discuss the context of Xunzi very much, so that to reverse a previous judgment is failure. Finally, this paper proposes the concept of Human Evil of Xunzi and thinks it should be reserved to distinguish thinking between Mencius and Xunzi by surveying recent papers.