The invention relates to a high-molecular digital painting material used in a printer and its production method. The digital painting material with high precision printing takes PVC as a raw material and is produced by adding a plasticizer, soybean oil, a liquid stabilizing agent without adding a lubricant, nanometer calcium, titanium dioxide and color powder. The formula comprises the following materials by weight: 100 parts of PVC, 30-50 parts of plasticizer, 3-6 parts of soybean oil, 3-6 parts of liquid stabilizing agent without adding the lubricant, 30-100 parts of nanometer calcium, 0.3-5 parts of titanium dioxide and 0.01-5 parts of color powder. The production method comprises the following steps: mixing, plasticizing, filtering, molding, embossing, cold cutting, trimming, rolling,applying, secondary embossing, secondary cold cutting, secondary trimming and secondary rolling. The wetting tension force on the product surface is large and the free energy rises from original 35 dyne to 36 dyne. The digital painting material with high precision printing is capable of enhancing the ink absorption of the surface, the painting effect reaches high color saturation, the digital painting material with high precision printing has the advantages of good reductibility, brightness, beauty and the like, is suitable for a high-speed painting machine, and can be widely used for the field of the painting advertisements.