The invention discloses an interlaced PFC control method and apparatus. The method comprises: obtaining the current of the branch where the two inductors of an interlaced PFC circuit are located; and under the condition that the current difference of the branch where the two inductors are located is greater than or equal to a predetermined threshold, adjusting the duty ratio of the branch of the two inductors so as to enable the current difference to be smaller than the predetermined threshold. By adopting the method and apparatus, the problems of possibility of circuit overall failure and poor circuit reliability which are caused by the imbalanced current in an interlaced PFC circuit in the related prior art are solved, the PFC control is more accurate, and the circuit reliability is improved.