The invention discloses a quick and stable control method adopted after island independent grid power generation equipment failure. According to the difference in operation features of power generation equipment, the power generation equipment is divided into three types, and the dynamic stable control mode after failure switching is preset according to the type of the failure power generation equipment; the corresponding dynamic stable control mode after failure switching is executed according to the received type of the failure power generation equipment; after the failure is eliminated, the execution of the corresponding dynamic stable control mode is canceled according to a received failure elimination signal. According to the method, based on wide-area data uploaded by a wide-area measurement unit, power vacancy caused by the exiting of the power generation equipment is calculated when the power generation equipment failure occurs, power imbalance of a system is eliminated instantly through storage energy regulation or load control after failure switching so that the system can be recovered to the stable operation state before the failure occurs, power balance is realized quickly after the island grid failure, and the stability of the fragile island grid system is improved.