The blue and white Xiu stool unearthed from the Yuyao site in Jingdezhen dates from the mid-fifteenth century and is large in size and special in shape. When unearthed, it was seriously damaged and had significant numbers of missing pieces, making restoration highly difficult. By analyzing the limitations of gypsum as a supplemental material in conventional archaeological restoration, the conservators took advantage of 3D scanning and printing, pioneered the adoption of transparent resins with high-hardness to replace conventional restoration materials, and completed the archaeological restoration of the large blue and white Xiu stool, along with a customized reinforcement device, meeting the needs of subsequent research and exhibition. In this paper, the conservators put forward a practical method involving 3D printing technology for restoring ceramics that are large and irregular in shape.