It discloses a perovskite optoelectronic device which includes a substrate, electrode layers and functional layers. The electrode layer is deposited on the substrate, the functional layer is deposited between the electrode layers, and the functional layer at least includes a perovskite layer, wherein the perovskite layer is a perovskite material possessing a self-organized multiple quantum well structure. By adjusting material components, controllable adjustment of the structure of the multiple quantum wells and effective energy transfer between the multiple quantum wells can be implemented, and light emitting color may be near-ultraviolet light, visible light and near-infrared light; moreover, the problems of low coverage and poor stability of the existing perovskite films can be effectively solved.