So-called April 12 Incident was the turning point of National Revolution of China. The practice and values of previous revolution was reconsidered and various group and class came to try to find new imagination and practice of revolution. Under this circumstance, aims of literature had shifted from establishing modern morality and enlightening the nation to awaring the historical stage and realities of current society and imaging new modernity. Mad Dun’ Ziye(子夜, Midnight) showed the collapse of the Principle of Minsheng and the promotion of industry which was corresponded to the national bourgeoisie, Wu Sun Fu’s various activity in the system of Nanjing Nationalist Government.