银平脱是唐代独有的奢华漆工艺，银平脱宝相花镜盒则是这类工艺中的小众日用珍品，专为唐代贵族女性收纳铜镜所用。它以木胎为底，反复髹漆之后，将镂刻好的薄银片纹样嵌入漆层之中，再经打磨使银片与漆面完全平齐，最终呈现出银白与漆黑交相辉映的效果。镜盒表面多装饰饱满的宝相花纹、缠枝花鸟纹，布局繁复规整，光泽内敛雅致，是唐代髹漆工艺与金银细工完美融合的产物。
Silver pingtuo is a unique luxurious lacquer craft of the Tang Dynasty, and the silver pingtuo Baoxiang flower mirror box is a rare daily treasure among such crafts, specially designed for noble women of the Tang Dynasty to store bronze mirrors. It takes a wooden body as the base, and after repeated lacquering, thin silver pieces with engraved patterns are embedded in the lacquer layer, then polished to make the silver pieces completely flush with the lacquer surface, finally presenting the effect of silver white and lacquer black reflecting each other. The surface of the mirror box is mostly decorated with full Baoxiang flower patterns and interlocking flower and bird motifs, with intricate and neat layout and restrained elegant luster, representing the perfect integration of Tang Dynasty lacquer craftsmanship and gold and silver fine workmanship.
这类镜盒多出土于唐代中原地区的高阶贵族墓葬与宫城遗址，墓主多为皇室女性与高官眷属，是当时生活精致度与身份等级的具象象征。由于银平脱工艺繁复耗时，且漆胎与银片易受潮湿环境腐蚀剥落，完整保存至今的唐代银平脱镜盒数量极为稀少，精品更是屈指可数。目前它们大多收藏于省级考古研究所与专项漆器展馆，极少在大众常设展览中展出，公众对唐代漆器的认知多集中于三彩与普通木器漆，对银平脱这类高端特种工艺了解极少，是唐代文物中十分冷门的门类。
Such mirror boxes are mostly unearthed from high-ranking noble tombs and palace sites in the Central Plains region of the Tang Dynasty, whose owners were mostly imperial women and families of high-ranking officials, serving as a tangible symbol of life delicacy and social status at that time. Due to the complicated and time-consuming silver pingtuo craft, and the fact that lacquer bodies and silver pieces are prone to corrosion and peeling in humid environments, very few Tang Dynasty silver pingtuo mirror boxes have been completely preserved to this day, and fine pieces are even fewer. At present, most of them are collected in provincial archaeological research institutes and special lacquer exhibition halls, and rarely exhibited in public permanent exhibitions. The public’s understanding of Tang Dynasty lacquerware mostly focuses on tri-colored glazed pottery and ordinary wood lacquer, with very little knowledge of high-end special crafts like silver pingtuo, making it a very obscure category of Tang Dynasty cultural relics.