The increase in blood pressure after exercise is mainly due to the fact that during exercise, sympathetic nervous tension increases significantly, heart rate accelerates significantly, and heart work increases, which leads to a significant increase in cardiac output, resulting in an increase in circulating blood urine, as well as the secretion of adrenaline, norepinephrine and other hormones that raise blood pressure during exercise, thus leading to an increase in blood pressure after exercise. This increase in blood pressure is a temporary phenomenon and will soon return to the normal range after rest. Patients with hypertension should avoid strenuous exercise and heavy physical work to avoid a significant increase in blood pressure due to exercise, which can lead to serious cardiovascular and cerebrovascular complications, resulting in serious consequences.