The invention provides a power load control method, server, terminal and system. The method comprises the following steps: receiving equipment information and power utilization information of electric equipment and a load management instruction; generating a power utilization control instruction according to the equipment information, the power utilization information and a load regulation instruction; sending the power utilization control instruction to the power load control terminal so as to enable the power load control terminal to regulate the power of the electric equipment according to the power utilization control instruction. The power utilization control instruction is generated by use of various information of the electric equipment so as to regulate the power of the electric equipment, so that load control of a power supply line can be accurately regulated, and the peak load problem of an electric system during a power utilization peak period is solved.