The utility model discloses a ration rubber coating device, including first frame, the seat is found on the right side, the seat is found on a left side, coating mechanism, cloth mechanism, pushing equipment, first motor, drive mechanism, the feeding is taken over, the second frame, a servo motor, first lead screw, a feeding nut, first slide, first cutting somebody's hair, first push rod, first piston, a cylinder barrel, inhale gluey control mechanism, go out to glue control mechanism, two columns installed on the pedestal, the feed cylinder, heating mechanism, the flexible coupling, the scale, transparent rubber tube, first piston moves to right, glue solution in the feed cylinder gets into the cylinder, first piston moves to left, impress the glue solution in the cylinder in the cloth mechanism, pushing equipment promotes the glue solution and evenly discharges through cloth mechanism, the setting is evenly adsorbed cloth mechanism exhaust glue solution in the kiss -coating groove onmetal cylinder surface, the metal cylinder is with the material surface of the even coating of glue solution in continuous process. The device simple structure can the ration inhale gluey, defeated glue, realize even continuous coating, and sealing performance is good, and degree of automation is high.