Gastroscopy is contraindicated in patients with severe hypertension or poor blood pressure control. Gastroscopy can be performed under the guidance of a doctor who can lower the blood pressure to about 140/90mmHg and then perform gastroscopy. The patient needs to develop a suitable medication regimen under the diagnosis of a specialist and adhere to a quantitative and regular dosage, and then determine whether the patient can undergo gastroscopy after consultation with various doctors. Regarding medication, patients can take antihypertensive drugs such as nifedipine, amlodipine, metoprolol, captopril, valsartan, etc. The specific regimen of medication varies according to individual differences, so please follow the doctor’s instructions and repeatedly perform blood pressure measurements and heart function tests before gastroscopy. When the doctor performs the gastroscopy, he/she should give the doctor the blood pressure feedback through the cardiac monitor in time. If the blood pressure is abnormal during the gastroscopy, the gastroscopy should be stopped in time and the patient should be treated with appropriate medication. If the patient is undergoing painless gastroscopy, measures should be taken to improve the patient’s respiratory status and nutritional status.