Lu, Xun had been seeking after reform of life and its subject, and the Controversy of Revolutionary Literature led Lu, xun to find new subject, so it had significant meaning for Lu, xun. In Lu, Xun`s view, intellectual writer couldn`t break bounds of practice and life which belonged to Companion writer, being mentioned several times by Lu, Xun. Unlike revolutionary literature groups, Lu, Xun took a stand that subalterns write their own literature and have to become literary subject. But because they as masses was ambivalent existence, Lu, Xun argued that the intellectual as companion should find out how they subalterns could be subject. He also anticipated that the intellectual writers constantly research the realities of life, analyze and capture the certain moment of life. Moreover, in the process of debate against revolutionary literature groups, Lu, Xun`s critiques that they speak revolution for the purpose of literature reveal that he had immature understand on class and class consciousness. On the other hand, Lu, Xun came to deeply understand socialist literary theory or proletarian literary theory throughout debates, and afterwards often used concept of proletariat in the expressions of revolutionary literature.