The invention provides a new energy island overvoltage control method based on a common connection point voltage and a converter station pole control system. Whether a fault occurring in an AC line inthe new energy system is a three-phase short circuit fault is determined by the converter station pole control system, if the fault is the three-phase short-circuit fault, a clearing command is issued by the converter station pole control system to make an outer loop power controller and an inner loop current controller in the converter station pole control system to perform outer loop power control and inner loop current control respectively till the voltage and the power of a common connection point are greater than the first voltage threshold and the first power threshold, and the converter station pole control system stops issuing the clear command to the outer loop power controller and the inner loop current controller. The converter station pole control system is advantaged in thatthe process is simple and is easy for realization, that the voltage outputted by a converter station port is quickly controlled to about 1.0 pu after the three-phase short-circuit fault is eliminatedcan be guaranteed, and fault ride through of a new energy unit and rapid recovery of the output voltage of the converter station are finally realized.