Abstract: Wu Sunfu, a hero in the novel Midnight by Mao Dun, is not a successful image. The inevitable formulization and conceptualization of his image cause the story short of thinking volume, conscious contents and aesthetic depth. Of various reasons leading to the situation, the most important one is that the author put the needs of real political battle upon the ones of artistic and aesthetic creation. His pursuit of novelty against artistic laws makes the heroic image mediocre and superficial.