Due to the dispatching and marketing load control method cannot satisfy the load emergency control and the power supply needs of large users and important loads when UHVDC block fault occur,a method is proposed to realize swift load control by improving specialty transformer user terminals in this paper.A common emergency load shedding control terminal is designed to meet the precise acquisition of interruptible load,real-time communication,and multi-master security fast control.A flexible configuration solution is designed for field load access,power calculation and tripping output.Finally,the terminal is applied at the user site.Actual load shedding test verified that the terminal fully meet the requirements of the precision load shedding system.