The invention belongs to the technical field of an electric power system and automation thereof, and discloses a method for setting a direct current commutation failure prediction link starting valueby integrating the supporting capacity of a phase regulator and interactive influences of multi-infeed direct current. The interactive influences in the multi-infeed direct current recovery process are considered, a quantitative evaluation method for the direct current recovery cost is proposed, and a differentiated setting principle for the multi-circuit direct current commutation failure prediction link starting value is provided accordingly, so that the occurrence probability of continuous commutation failure of multi-infeed direct current is reduced, and the power impact for a receiving-end power grid is reduced. The method can provide a reference for safe and stable running and control strategy formulation of a multi-infeed direct current system.