What is the starting drip rate of blood transfusion should be objectively analyzed according to the physical condition of the patient and the different conditions of the patient. First, for the usual physical condition of good young patients, the emergence of acute hemorrhage, the beginning of blood transfusion can be appropriate to speed up the drip rate of 100 drops per minute, and at the same time, closely observe the patient’s blood pressure, central venous pressure, urine output, recovery of consciousness, etc.; Second, for the elderly patients with weak physical condition, in the transfusion of blood can be appropriately slowed down the drip rate of 20 drops per minute, and to observe the patient transfusion of itchy skin, respiratory distress, panic and other reactions, abnormalities need to slow down the drip rate or suspend the transfusion; Third, pediatric blood loss requires emergency transfusion of blood. Observe whether the patient has skin itching, respiratory distress, panic and other reactions after blood transfusion, there is an abnormal need to slow down the drip rate or pause the transfusion; Third, in the case of pediatric blood loss requiring emergency blood transfusion, the transfusion rate should be strictly controlled at about 10 drops, the child’s body is weaker for a short period of time to enter a large dose of blood, which will induce cardiac failure.