Embodiments of the present disclosure provide a diaphragm and an audio device. The diaphragm comprises: at least one insulating film, a plurality of conductive films, and a plurality of connecting pieces. The insulating film is provided with a magnetic pole corresponding area. Each of the conductive films is connected at least to one insulating film, the plurality of conductive films is arranged with an interval, and the magnetic pole corresponding regions are respectively arranged on the two sides of each conductive film. The plurality of conductive films is connected in series by means of the plurality of connecting pieces to form an energized circuit. According to the technical solution provided in the embodiments of the present disclosure, the at least one insulating film is connected with the plurality of conductive films arranged with an interval, and the magnetic pole corresponding regions are respectively arranged on the two sides of each conductive film, such that a conductive film having a relatively large area can be located in a relatively strong magnetic field, each conductive film also emits low-frequency sound that meets user's needs, and the conductive film can cover the high, medium and low frequency spectrum.