The present application relates to a loudspeaker module and an electronic device. The module comprises a module housing and a loudspeaker single-unit; an inner portion of the module housing is provided with a cavity, and a diaphragm of the loudspeaker single-unit separates the cavity into a front acoustic cavity and a rear acoustic cavity, the front acoustic cavity communicating with an acoustic hole; the module housing further comprises a resonant cavity, the resonant cavity and the rear acoustic cavity being disposed adjacent to each other, and the two being isolated from each other; the resonant cavity communicates with the front acoustic cavity by means of a communication hole, and the resonant cavity is provided therein with a filtering structure, the filtering structure being structured so as to be used for adjusting high-frequency characteristics of the loudspeaker module. One technical problem to be solved by the present application is that existing resonant cavities lead the quality factor of a loudspeaker module to be unusually high. One use of the present application is for use with electronic devices.