The invention provides a control method for a power system emergency regulation domain. According to the method, in an operation section of a system emergency regulation domain, the output of a systemunit combination is in a state of a nonadjustable emergency neighbourhood, according to a dispatching plan, step-by-step energy abandonment is amended in the operation process, a control strategy isdetermined according to influence factors such as current energy price and the like, and the control technology is more reasonable. When the system load is reduced to a certain degree, the strategiesof abandoning nuclear energy, abandoning wind energy, and even abandoning luminous energy are optimized, and the reasonable control is realized.