The invention belongs to the field of underwater explosion test and particularly relates to an electromagnetically controlled underwater high-pressure bubble source device. The electromagnetically controlled underwater high-pressure bubble source device comprises a tank, a tank top cover, tension springs, a tank top cover fixing seat, a rotating shaft, a supporting plate, support lead screws, a base, lead screw nuts, a lever support, threaded holes, a fixing lead screw, a supporting point, a lever, an electromagnet block, tension spring supports, an electromagnet fixing seat, an electromagnet,a tension spring supporting seat and a tension spring fixing supporting frame. The electromagnetically controlled underwater high-pressure bubble source device has the advantages that the device is applicable to underwater operation, can control high-pressure gas pressure through an electromagnet switch and needs no repair and maintenance after operation; the tank simple in structure and easy insize replacement can be replaced according to the requirements of different operation conditions; the device is simple in structure and convenient to operate, and can provide ground simulation test for underwater explosion and fundamental research base in the fields of marine exploration and underwater high-explosion protection of marine structures, thereby being significant in application value.