The invention relates to an alternating current type abrasive magnetic fluid jet flow generator which comprises a supporting seat, wherein a stirring barrel is arranged on the supporting seat, a discharge pipe is arranged on the lower side of the stirring barrel, the discharge pipe is connected with an abrasive pipe through a connector I, the outer periphery of the abrasive pipe is wrapped by a superconducting coil, a coil sheath is arranged on the outer side of the superconducting coil, the abrasive pipe is connected with a high-pressure rubber hose through a connector II, and the high-pressure rubber hose is connected with a nozzle through a rapid plug. The abrasive magnetic fluid can be sufficiently mixed through the stirring barrel arranged, so that the even abrasive magnetic fluid solution can be obtained, the use of a booster and a pump pieces can be favorably avoided through the superconducting coil arranged, the electrolysis problem of the alternating current type abrasive magnetic fluid jet flow generator can be avoided, the leakage problem brought by a hydraulic element can be decreased, and the alternating current type abrasive magnetic fluid jet flow generator has a simple structure, and is convenient to operate, and economic and practical.