A method for power load management is provided in the present invention, wherein two different standard values are determined to be a basis for regulating power consumption. When power consumption exceeds a first standard value, a monitoring procedure is started to monitor consumption status. If the power consumption exceeds a second standard value, an unloading procedure is processed to reduce the power consumption of electrical devices under operation. In another embodiment, the present invention also provides a system for power load management comprising a control unit coupled to at least one electrical device and a power meter. By means of real-time recording of power consumption in the power meter, the control unit is capable of determining the power consumption status and determining whether it is necessary to unload or reload the at least one electrical device.