The invention discloses an iron core hinged workpiece assembling apparatus, which relates to the processing field of iron core hinged workpieces. The apparatus comprises a frame, wherein the frame isprovided with a feeding mechanism, wherein the feeding mechanism comprises a conveying line 1, a conveying line 2, and the conveying line 1, 2 are arranged in parallel and pass through the inside andoutside of the frame; Transfer mechanism; A conveying mechanism; A yoke assembly mechanism and an unloading mechanism; The feeding mechanism feeds the iron core hinged workpiece, the transferring mechanism shapes the iron core hinged workpiece and then transfers the load, the conveying mechanism conveys the iron core hinged workpiece to the yoke assembly mechanism for assembly with the yoke, and then carrying out unloading, so that the whole assembly process of the iron core hinged workpiece is highly automated and the assembly smoothness is high.