Disclosed are a magnetic-potential loudspeaker and an electronic device using the same. The magnetic-potential loudspeaker comprises: a movable sound generating device provided with a magnetic conductive material, wherein at least a part of the magnetic conductive material is arranged in an area where an alternating magnetic field overlaps with a static magnetic field, a magnetic field force generated by an interaction between the static magnetic field and the alternating magnetic field is applied to the magnetic conductive material, the movable sound generating device further comprises a diaphragm and a rigidity adjusting portion arranged on at least one surface of the diaphragm; and at least one suspension device, wherein the suspension device comprises an elastic recovery device, an inner fixing portion of the elastic recovery device is fixed to the diaphragm, an outer fixing portion thereof is fixed to an inside of the magnetic-potential loudspeaker, and the rigidity adjusting portion.