Implanted cardiac pacemaker

The utility model relates to an implanted cardiac pacemaker. An epoxy resin top is molded at the top end of a pulse generator of the implanted cardiac pacemaker, and a penetrating leading wire and a connecting body are positioned in the epoxy resin top. Besides, screw holes and a seal cavity are longitudinally molded on the epoxy resin top, and an electrode conduit pipe cavity is transversely molded on the epoxy resin top. When the utility model is used in a clinical operation, an electrode conduit pipe plug at one end of a sheathed electrode conduit pipe is inserted into the electrode conduit pipe cavity to ensure that the electrode conduit pipe plug is tightly connected with the connecting body and then is well fixed by screw nails, and a sealing plug is inserted into the seal cavity. Thus, the reliable connection is guaranteed, the electricity conducting performance is favorable, but also the reliable seal is guaranteed, and the functions of the cardiac pacemaker is effectively realized.