The invention discloses a novel smart city garbage management system. The novel smart city garbage management system comprises a shell, opening and closing mechanisms are installed on the left side and the right side of the top of the inner wall of the shell, each opening and closing mechanism comprises a round rod, a gear, a torsion spring, a convex block and a bent plate, and the rear end surface of each round rod is fixedly connected with the upper part of the inner wall of the shell. According to the novel smart city garbage management system, the two bent plates are controlled to rotate through the opening and closing mechanisms, so that the opening and closing of a garbage feeding port are realized, garbage is prevented from running out due to being too full, the surrounding environment is guaranteed, and the use viscosity is improved; after the height of the internal garbage reaches a certain height, the bent plates are limited and cannot rotate, so that the storage of the garbage is limited, the service life is prolonged, the stirring of the internal garbage is realized, the garbage is prevented from being adhered and stuck, the falling of the garbage is guaranteed, the working difficulty is reduced, and normal use is guaranteed; and water in the garbage is leaked through a filter plate in an adjusting mechanism, so that the garbage is prevented from being soaked, the smell is reduced, the influence on the breath of passing people is reduced, and the popularization is facilitated.