The invention provides a buckling, gluing and screwing three-in-one mechanism for automobile wheel brows and fog lampshades. The buckling, gluing and screwing three-in-one mechanism for the automobilewheel brows and the fog lampshades is provided with a robot arm, a buckling device, a gluing device and a screwing device, through a quick-change device, the robot arm can quickly switch among the buckling device, the gluing device and the screwing device, and the buckling device and the gluing device are connected with each other, so that buckling and gluing are carried out on automobile wheel brow supplied materials; in the period, loading and unloading of the automobile fog lampshades can be carried out; a quick-change seat of the buckling device and the robot arm are arranged in the middle, the automobile wheel brow supplied materials and fog lampshade supplied materials are arranged on two sides, thus loading and unloading are facilitated, the supplied materials are prevented from being mixed, and meanwhile, the stroke of the robot arm can be reduced; and according to the screwing device provided by the invention, automatic loading and installation of screws can be realized through a specific clamping nozzle design, and convenience and rapidness are realized.