The invention discloses a plating and coloring device for a cosmetic tube. The plating and coloring device comprises a vacuum plating and coloring tank, a plating and coloring device and a carrying device; a vacuum pumping device, a driving wheel and an electrode plate are arranged in the vacuum plating and coloring tank; the driving wheel is used for driving the plating and coloring device; the electrode plate is used for heating the plating and coloring device; the plating and coloring device comprises a rotation device, a revolution device and a heating device; the heating device comprisestwo heating rods, tungsten wire seats and current-conducting plates; the tungsten wire seats are arranged between the two heating rods; the current-conducting plates are used for supporting the heating rods; the current-conducting plates at the two ends of the heating rods are separately mounted on a first supporting seat and a second supporting seat; the current-carrying plate on the first supporting seat is used for being connected with the electrode plate in the vacuum plating and coloring tank; flat grooves are formed in the heating rods; threaded holes are formed in the flat grooves; stopscrews are arranged in the threaded holes; and flat cushion plates are arranged between the flat grooves and the stop screws. Through the arrangement, the surface of the cosmetic tube is plated and colored uniformly, and the seven-color effect is excellent, the gorgeous degree requirement of the seven-color effect can be further achieved, and the plating and coloring device is carried more conveniently.