Abstract: Graphene-bridged ZnO/Ag₃PO₄ composite photocatalytic material, with excellent visible light catalytic performance, was prepared with the method of precipitation and deposition. Some characterization methods, includingXRD, XPS, SEM, EDS, BET, FTIR, UV-Vis DRS, PLand ESR were adopted to characterize and analyze the crystal structure, morphology, and optical properties of ZnO/Ag₃PO₄ composite photocatalytic material. Meanwhile, the photocatalytic degradation performance of GO-ZnO/Ag₃PO₄ with different ratios of graphene oxideto simulation antibiotics wastewater ciprofloxacin (CIP) was explored. The introduction of GO and ZnO enhances the visible light absorption of GO-ZnO/Ag₃PO₄, and makes GO-ZnO/Ag₃PO₄ have better separation efficiency of electron-hole pairs. When the mass fraction of GO is 1wt%, GO-ZnO/Ag₃PO₄ displays the best photocatalytic activity, and the degradation rate of CIP can reach 85.3% after 60 minutes of visible light. The capture experimentprove that, in the reaction process, superoxide radical (·O₂^–) is the main active substance, and a heterojunction is formed between ZnO and Ag₃PO₄, which conforms to the Z-scheme electron transfer mechanism. The introduction of GO furtherly improves the rapid transfer of electrons and makes the Z-scheme system more stable. After six photocatalytic cycles, the degradation rate remained above 70%, indicating that the GO-ZnO/Ag₃PO₄ composite material has excellent stability.