The invention aims to provide a demand side load dynamic control method, and designs a control method aiming at minimizing the economic losses to power companies and minimizing the number of users affected and suitable for domestic demand side management at the present stage. The load of the demand side is controlled hierarchically by means of load transfer, load reduction and load interruption, which can reduce the impact on customer satisfaction, reduce the cost of the power grid and improve the power consumption efficiency of terminals while alleviating the power supply gap. The technical scheme adopted by the invention that the load dynamic control method includes a load transfer strategy, interruptible load management and a demand side load hierarchical control strategy.