Sound box passive basin structure and sound box

In order to solve the problem that space loss of an internal cavity is caused due to the fact that a net cover is additionally arranged on an existing loudspeaker box to cover a passive basin, the loudspeaker box passive basin structure and the loudspeaker box are provided, the loudspeaker box passive basin structure comprises a loudspeaker box body and a passive basin, a containing groove and a ventilation cavity are formed in a shell, and the passive basin is arranged in the containing groove and is arranged opposite to the ventilation cavity; the ventilation cavity penetrates through the bottom of the containing groove, the ventilation cavity is formed in the face, away from the cavity, of the containing groove, the ventilation cavity comprises a bottom wall and a side wall, the side wall of the ventilation cavity is provided with ventilation holes, and the ventilation holes are communicated with the ventilation cavity. According to the sound box passive basin structure provided by the invention, the passi