There are five major classes of hypertensive drugs, including calcium antagonists, angiotensin-converting enzyme inhibitors, angiotensin II receptor antagonists, diuretics and beta-blockers, and other antihypertensive drugs. The selection method of antihypertensive treatment drugs are: 1, it is recommended to use long-acting antihypertensive drugs, that is, drugs taken once a day, the effect can last 24 hours; 2, small doses of long-acting drugs used in combination, if a single drug, increase the dose will increase adverse reactions, such as the effect of antihypertensive with calcium antagonists is not good, after increasing the dose of adverse reactions will increase, the appearance of anterior tibial edema, gingival hyperplasia, etc.; 3 The process of antihypertensive treatment is recommended to be individualized according to the person and reasonable.