The Acute Ischemic Stroke Registry for Endovascular Treatment (AIS-EVT) is an academic, prospective, multicenter, observational registry study. Consecutive stroke patients treated with endovascular treatment will be enrolled in stroke centers. Baseline information and clinical follow-up information at 90 days of stroke onset are collected. Data collected include demographics, comorbidities, pathogenesis, blood pressures, stroke severity on admission, time intervals, reperfusion condition, and functional outcome, et al.