The invention discloses a vortex type implantable pulse ventricle assisting blood pump. The vortex type implantable pulse ventricle assisting blood pump comprises an inlet joint, an outlet joint, an inlet valve, an outlet valve, an upper cap, an elastic membrane, an inner cylindrical cam, a linear guide rail, an ultrasonic motor rotor, two rolling bearings, a pretension shaft, an ultrasonic motor stator, a base and a shell. By adopting a mechanical motion converting mechanism of the reverser inner cylindrical cam in the vortex type implantable pulse ventricle assisting blood pump, the top of the cylindrical cam and a push plate embedded at the bottom of the elastic membrane are combined into one, the number of motion transmission parts is decreased, and pump volume is reduced and easy to implant. Meanwhile, according to the relative position of the left ventricle and the ascending aorta, a blood inlet and a blood outlet are respectively arranged at adjacent positions on one side of a blood cavity with a hemispherical recess, so that a vortex flow is formed in the blood cavity, flushing effect on the wall surface of the blood cavity is improved and thrombus formation is reduced.