The invention provides a digital image film and a preparation method thereof. The digital image film is composed of a film base, a bottom layer and a surface layer, wherein the upper and lower surfaces of the film base are respectively coated with the bottom layer and the surface layer, and the bottom layer is positioned between the surface layer and the film base. The digital image film provided by the invention has strong water resistance, is soaked in the water for 24 hours, and can not drop; the product has good flexibility on a laser printer, the digital image film and the preparation method can overcome the problems that paper jam in the common digital printing process of the existing paper product is overcome; and the definition and saturation of the printed image are poor, the color loses colors (the product can improve the reducibility of the color) and the like.