The utility model relates to a multifunctional storage box of an automobile. The multifunctional storage box comprises a storage box body with a storage inner cavity, wherein the storage box body is fixedly arranged on the side face of the back of a seat of a front row of the automobile; a movable storage box protecting cover is arranged on the storage box body, and an extracting paper outlet is formed in the storage box protecting cover. The multifunctional storage box is simple in structure, high in integration level and reliable in performance and can be widely applied to the field of automotive lighting adjustment switches. According to the multifunctional storage box of the automobile, the problems that the existing storage boxes developed below cushions are higher in development cost and inconvenient in object fetching and the existing storage boxes on guard boards at automobile door sides of seat cushions are smaller in actual available space, limited in storable objects and single in function can be effectively solved; the structure is simple, and the privacy is good, so that the multifunctional storage box can be widely applied to the field of automobile storage boxes.