In order to improve the effectiveness of product fading surface modeling design, this paper puts forward an application research of rhino modeling software in product fading surface modeling design from the perspective of computer. First, this paper studies the optimization design of product fading surface modeling, establishes the visual image information processing model of product fading surface modeling design, carries out product fading surface modeling design according to the information fusion results, and puts forward the product fading surface modeling design method based on visual expression and surface fusion. Based on rhino modeling software, the visual communication design of product fading surface modeling design is carried out, the visual optimization control model of product fading surface modeling is established, and the optimization design of product fading surface modeling is realized by combining the block fusion matching method. The simulation experiment of product fading surface modeling design is carried out in rhino modeling software. Therefore, this method has good effect, strong visual communication ability, and short time cost.