In a direct current (DC) receiving-end power grid, DC system commutation failures can cause effects on a receiving-end alternating current (AC) power grid. The receiving-end power grid frequency may fluctuate sharply when the situation is serious. The DC commutation failures are mainly caused by bus voltage sags and excessively large bus voltage distortion rates of DC converter stations. The invention provides a control method for DC commutation failure handling by a battery energy storage power station. The method is characterized in that the battery energy storage power station is controlledaccording to the bus voltage of a DC converter station, wherein once a system voltage sag exceeds a preset value, the battery energy storage power station is immediately controlled to send a reactivepower to increase the bus voltage of the converter station; and if the bus voltage distortion rate of the converter station exceeds a preset value, the battery energy storage power station immediately implements an active power filter control strategy for harmonic compensation, so that the bus voltage distortion rate of the converter station can be reduced. Through the control measures, the occurrence of the DC commutation failures can be reduced or the recovery time after the DC commutation failures can be shortened, so that the effects of the DC commutation failures on the receiving-end power grid are reduced, and the safety and stability of the receiving-end power grid are improved.