With the larger and larger amounts of distributed generation, the safe and stable operation of microgrid is being greatly tested, the importance of precise load-shedding control strategy is becoming more and more prominent. In order to minimize the overcutting value, and to improve the economy of load control, the control strategy of precise load-shedding in microgrid needs to be improved. At first, the principle of smart load is introduced and the dynamic change of power of intelligent load is realized by adjusting the voltage of electric spring (ES). Then, the traditional precise load-shedding control strategy of applying weight method and round method is analyzed, and a precise load-shedding control strategy based on smart loads is proposed to minimize the overcutting value through the dynamic response of the load, and apply it to the weight method and the round method. At last, the cases analysis indicate that, the proposed strategy can reduce the system overcutting value effectively, and enhance the economy of load control.