Despite significant progress in the efficiency of inverted perovskite solar cells (PSCs), their poor long-term operational stability under complex environmental stressors remains a major challenge for their commercialization. Herein, a targeting light-management strategy with a down-conversion small molecule, Rhodamine B-acylhydrazine (RhBH), is innovatively demonstrated to enhance the ultraviolet (UV) resistance and optimize photon management. It reveals that the chelates formed by RhBH and unc