In the second half of 20th century, the theory of post- colonialism extends to every part of the world. In Chinese context, the misunderstanding of the post - modernist criticism is a fact which can not be overlooked. Its manefestation is to replace post- colonialist criticism with moody"westcentric doctrine", indicating that China's literary criticism has suffered from"loss of voice",and consequently an overanxiety and paradox in the practice of post - colonialism are shown. The rise of "westcentric doctrine"has hindered the cultural exchange between west and east because the doctrine is full of challenge and deconstruction, which is,as it were,against the historical current. The people who advocate"the loss of voice"are doubtlessly patriatic,but its prerequiste is still open to question. The paradox of postcolonialism can not be avoided. The key point is that we must know our position when we try to make clear what is implied in our ideology. We must not only transcend the hierachy and the pattern of conflict produced by man, but also break away from colonial and semi - colonial mentality, post - colonial cultural elements,and illiberal nationalist sentiments.