The work aims to discuss the attire modeling of Xi Shou who serves as the booi of the Imperial Household Department during the Qianlong Period and takes charge of setting the copper clepsydra in the Hall of Union on the day before the Rite of Worshiping Silkworm. The booi of the Imperial Household Department refers to the servants of the imperial family, which is a special group and belongs to the upper three banners, with status superior to the booi of the lower five banners. The attire of the booi with an official position varies according to the ranking. However, Xi Shou, the protagonist in this work, without an official position, is rarely mentioned in official historical records regarding the attire. Therefore, with reference to depictions of the booi without an official position in the Imperial Household Department in realistic paintings from the Qianlong Period, based on the background of the storyline and combined with the literature for comprehensive verification, after summary and analysis, it is determined that the headwear of this group is a hat without top decoration and the clothing from outside to inside and from top to bottom is consisted of round-necked robe, collar shirt, underlinen, Manchu saddle pants and high boots as footwear. On the basis of observing the original historical appearance, the attire modeling of Xi Shou undergoes feature mining according to the character setting and story situation, and enhances the fit between attire and role and script through the choice of color and pattern.