The present invention relates to a speaker box module, and particularly relates to a loudspeaker that produces sound through the mechanical vibration generated by electromagnetic force and a manufacturing method therefor. The loudspeaker comprises a speaker box module which comprises a speaker, a passive radiator and a speaker box panel, wherein a mounting hole is arranged in the speaker box panel; the speaker is arranged in the mounting hole and is integrated with the speaker box panel by means of insert injection molding; a secondary mounting hole is arranged in the speaker box panel at one side of the mounting hole; and the passive radiator is arranged in the secondary mounting hole and is integrated with the speaker box panel by means of insert injection molding. The loudspeaker is small and thin, structurally simple, and enhances bass, and can be used as a built-in speaker or an external speaker for modern tablet computers or smart phones, and the like. In order to ensure that the speaker box has excellent acoustic effect, the present invention uses an insert injection integrated manufacturing process, which ensures maximum acoustic effect of the speaker box while greatly reducing man-hours and thereby increasing production efficiency.