Qi and blood theory is one of important contents of basic theories of TCM.It argues that coordination between qi and blood is the normal physiological condition of the human body.Deficiency of qi and blood，blocked qi activity and blood circulation is the state of pathology of qi and blood disorder.qi-blood,heart and brain are closely related in physiology and pathology.So the principle of treating heart and brain simultaneously was established.It contributes a lot to the theory of treating different diseases by the same therapeutic principles.At the same time，it provides new strategies for prevention and control of cardio-cerebrovascular disease.