Diabetic retinopathy (DR) has become an important cause of irreversible vision loss worldwide. Intravitreal injection of anti-vascular endothelial growth factor (VEGF) drugs is an important adjunct to the treatment of DR. However, the current anti-VEGF treatment regimen is not uniform. Anti-vegf injection was preferred and then delayed combined with laser had better prognostic effect. The best time for operation was 5-7 days after injection of anti-VEGF. Pars plana vitrectomy (PPV), intraoperative and postoperative on-demand anti-VEGF injection can significantly improve patient prognosis and reduce complications, but further research is needed to strike a balance between the economic burden and the number of injections. Various anti-VEGF drugs have their own advantages for different diseases and should be selected according to the characteristics of the diseases and drugs. Anti-VEGF drugs combined with antioxidants may further improve DR Outcomes. Future studies should pay more attention to the optimization and personalization of anti-VEGF drug application programs to meet the therapeutic needs of different patients.