The invention relates to a method for repairing circuits of an embedded circuit board, which comprises the following steps of: firstly providing an embedded circuit board, wherein the embedded circuit board comprises a dielectric layer and a plurality of circuits, the dielectric layer is provided with a surface and a notched pattern, and the circuits are positioned in the notched pattern, the partial circuits are provided with at least one defect; and then, spray printing a conductive fluid material on the defects in a spray printing mode to repair the circuits.