Anticoagulation therapy and antiplatelet therapy are not the same thing. However, the ultimate goal is to prevent the formation of blood clots. First of all, platelets play a very important role in the initiation of the clotting process and the development of blood clots. Anti-platelet drugs mainly achieve the purpose of inhibiting platelet aggregation etc. through various pathways, e.g., clopidogrel inhibits platelet adhesion, aggregation and secretion function through ADP pathway, which ultimately inhibits the occurrence and development of thrombus. It is mainly used for the prevention and treatment of non-cardiogenic cerebral infarction. Anticoagulation therapy is a treatment that targets the blood clotting process. Normal human blood has the function of making blood clot. The blood clotting process is a complex chain reaction of protein hydrolysis activation, including the activation of 12 clotting factors numbered by Roman numerals in a certain order and the participation of multiple enzymes, which ultimately turns blood into a blood clot. Anticoagulation therapy is used to prevent and treat thrombotic disorders by preventing blood clotting to some extent through drugs that affect certain coagulation factors in the clotting process. Clinically, it is mainly used in cardiovascular surgery such as direct cardiac surgery, arterial repair, vascular anastomosis, bypass surgery, microsurgery such as amputation and amputation reimplantation, cardiac catheterization, cardiac catheterization, cerebrovascular catheterization, prophylactic anticoagulation for hemodialysis and artificial kidney, and treatment of myocardial infarction, cardiogenic embolism, acute pulmonary embolism and other important organ thrombosis.