Choroidal neovascularization (CNV) mainly caused by age-related macular degeneration (AMD), can lead to serious central vision effect, even blindness. At present, the photosensitizer Verteporfin mediated photodynamic therapy(PDT) on CNV achieved remarkable results.Because of the price, the clinical treatment is limited. So the scholars of many countries devoted to the research and development of new photosensitizer to obtain replacement for the utility of Verteporfin, this paper applied to the advanced study on the photosensitizer of PDT on CNV.