Temporary storage platform device and mirror cabinet

The temporary storage platform device comprises a base and a movable platform, the base is connected to the movable platform through a connecting rod set, and the two ends of the connecting rod set are pivoted to the base and the movable platform respectively. Therefore, the movable platform can move between the storage position and the working position relative to the base, specifically, the movable platform is folded and stored below the mirror cabinet when not in use, the movable platform is dragged outwards to form a temporary storage platform when in use, and the defects that in the prior art, the mirror surface area needs to be sacrificed, and a split mirror door needs to be frequently opened and closed are overcome. The storage space inside the mirror cabinet is not occupied even if the mirror cabinet is installed below the mirror cabinet; meanwhile, a limiting convex part is arranged at the end, away from the user, of the movable platform, and when the movable platform is located at the working positi