Mechanical thrombectomy is one of the effective methods to treat acute ischemic stroke and great vessel obstruction. Blood pressure is an important factor affecting the prognosis of mechanical thrombectomy. Although a large number of studies at home and abroad have suggested that high or low blood pressure before and after mechanical thrombectomy is related to poor prognosis， there is still no unified standardized scheme for the management of blood pressure before and after mechanical thrombectomy， most of which are empirical treatment. In this paper， the influence of blood pressure and its variability on prognosis function before and after mechanical thrombectomy in patients with acute ischemic stroke is reviewed， in order to provide some reference for blood pressure management before and after mechanical thrombectomy.