Abstract: Benjamin's film aesthetic theory is distinct from the other members of the Frankfurt School. He doesn't adopt the traditional aesthetical framework which is based on the idea that beyond or detach from reality. By deeply go through the spiritual world of modern people in which immersed in the short and fragmental "shock" experience, Benjamin disclose the significance that film brings to modern people, which lies in that, the camera cutting the image of reality and the montage can represent "shock" experience, the leisured way in which we consume movies will form the mental mechanism that the mass use for handling the daily shock, the experience that the mass watch a movie simultaneously will take the therapeutic effect in a psychoanalysis sense way. The analysis that Benjamin make on the specialties of modern film helps us confront the intrinsic change in the modern society and the art form generated in this society.