This study is a multicenter, prospective, randomized, open-label, parallel-controlled clinical trial. The study participants are adult patients with hypertension who have been long-term residents (for \>6 months) in high-altitude regions (≥2500 m). They are randomly assigned to one of two groups: a conventional medication group and a remote ischemic conditioning (RIC) intervention group. The study aims to evaluate the effectiveness of a standardized 30-day RIC intervention, as an add-on to conventional antihypertensive medication, for reducing blood pressure in hypertensive immigrants living at high altitude.