Diabetic fundus hemorrhage is an ocular complication of diabetes, known as diabetic retinopathy. Whether or not blindness occurs and when it occurs depends on the severity of the patient’s disease and treatment, and cannot be generalized. Diabetic retinopathy is divided into a proliferative phase and a non-proliferative phase. The non-proliferative phase often refers to microangiomas and small hemorrhages and hard and soft exudates, which are mainly treated with medication. The proliferative stage is often characterized by retinal detachment and proliferative lesions that require aggressive retinal laser photocoagulation surgery. Usually, blindness does not occur after blood glucose is controlled within the normal range and the fundus lesions are actively treated. However, if a large amount of vitreous hemorrhage is not actively treated, it may develop into neovascular glaucoma, which may lead to blindness of the patient’s eye, for how long there is no exact data in clinical practice. Therefore, once diabetes is clearly diagnosed with fundus hemorrhage, patients need to actively control blood sugar, pay attention to diet regulation, prevent hypertension, participate in physical exercise appropriately, avoid strenuous exercise, and master the knowledge related to diabetes and fundus hemorrhage disease.