The invention discloses an oil filtering control apparatus and method for a transformer, relates to the technical field of transformer oil filtering, and aims to realize automatic operation of transformer oil filtering. The oil filtering control apparatus for the transformer comprises an oil filter, N-1 first oil tanks and a second oil tank; a first valve group is arranged on the oil outlet of each first oil tank while a second valve group is arranged on the oil inlet; the oil filtering control apparatus also comprises connected data acquisition module and control module; the data acquisition module is used for collecting oil liquid parameters of each first oil tank; and the control module is used for controlling the first valve group to be connected with the oil inlet of the oil filter and the oil outlet of each first oil tank, and controlling the second valve group to be connected with the oil outlet of the oil filter and the oil inlet of each second oil tank, or controlling the first valve group to be connected with the oil inlet of the oil filter and the oil outlet of each second oil tank, and controlling the second valve group to be connected with the oil outlet of the oil filter and the oil inlet of each first oil tank. The oil filtering control method for the transformer comprises the oil filtering control apparatus for the transformer disclosed in the abovementioned technical scheme. The oil filtering control apparatus for the transformer is used for filtering transformer oil.