This study is a prospective, multi-center, open-label, randomized and controlled study. Subjects are selected from hypertensive emergency patients with a BP (Blood Pressure) of >180/120mmHg (SBP/DBP) and accompany with end target organ damage. All subjects are randomized into two groups receiving the Nicardipine Injection: Control Group (at a weight-based dose adjustment, i.e. according to the current Package Insert approved by SFDA) and Study Group (at a non-weight-based dose adjustment, i.e. according to the Package Insert approved by FDA).