The invention discloses a decorative film paint coating device. The decorative film paint coating device comprises a supporting plate, a scraping plate and a plurality of paint bottles, wherein the scraping plate and the multiple paint bottles are fixed to one side of the supporting plate; the paint bottles are located above the scraping plate, and the outlet ends of discharging pipes at the bottom ends of the paint bottles make contact with the upper end of the side face of the scraping plate; the bottom end of the scraping plate is provided with a rotatable scraping head, wherein an includedangle of 30-60 degrees is formed between the rotatable scraping head and the scraping plate; cross rods penetrating through the scraping plate are arranged at the two ends of the scraping head, and nuts are spirally fixed to the ends of the cross rods; and rough patterns are arranged on the sides, close to the scraping plate, of the nuts. By evenly arranging the multiple paint bottles on the scraping plate, paint falls downwards along the outer wall of the scraping plate and then drips into the surface of a decorative film, the paint is effectively prevented from being splashed around, the redundant paint is removed through the scraping plate, and thus subsequent machining is convenient; and by arranging the cross rods and the nuts, the included angle between the scraping head and the decorative film can be adjusted according to needs, and then through the rough patterns between the adjacent sides of the scraping plate and the nuts, the scraping head is prevented from being loosened and then rotating in the working process.