The invention relates to an efficient exciter rotating and rectifying module mounting seat. The mounting seat is composed of a connecting plate and a fastening bolt. The connecting plate is crescent, and symmetrical connecting through holes are formed in the connecting plate; a screw of the fastening bolt penetrates through the connecting plate and is welded with the connecting plate into a whole. Because the thread of the fastening bolt is in small clearance fit with an iron core through hole of the exciter, the screw of the fastening bolt needs to be knocked into a corresponding through hole of the iron core of the exciter, so that the fastening bolt is tightly matched with the iron core of the exciter. Moreover, the mounting seat is fixedly connected with a rotating and rectifying module by a nut, so that the rotating and rectifying module safely rotates at a high speed along with a motor. The efficient exciter rotating and rectifying module mounting seat disclosed by the invention has the beneficial effects that (1) the reliability and maintainability of the rotating and rectifying module are improved; (2) the mounting seat is separated from the exciter, and the iron core of the exciter can be conveniently subjected to independent overlap molding; and (3) the exciter rotating and rectifying module mounting seat is convenient to process and mount and easy to operate.