错金铁尺是汉代度量衡文物中的小众珍品，区别于常见的青铜尺、玉尺，它以熟铁为胎，采用错金工艺将金丝嵌入铁身凹槽作为刻度与装饰纹样，是汉代冶金技术与度量制度高度结合的产物。已出土的汉代错金铁尺多为十寸制式，刻度划分精准，尺身两侧常錾刻云气纹、夔龙纹与几何边饰，金丝与深褐铁底形成强烈明暗对比，虽历经千年锈蚀侵染，依然能窥见当年的精工细作，是研究汉代度量衡体系与细金工艺的重要实物佐证。
The gold-inlaid iron ruler is a rare treasure among Han Dynasty metrological cultural relics. Different from common bronze and jade rulers, it takes wrought iron as the base and adopts the gold-inlay technique to embed gold threads into the grooves of the iron body as scales and decorative patterns, representing the high integration of Han Dynasty metallurgical technology and measurement system. Most unearthed Han Dynasty gold-inlaid iron rulers follow the ten-cun standard with precise scale division. Both sides of the ruler are often engraved with cloud patterns, kui-dragon motifs and geometric borders. The gold threads form a sharp contrast with the dark brown iron base. Despite thousands of years of rust and erosion, the exquisite craftsmanship of that era is still discernible, making it important physical evidence for studying the Han Dynasty metrological system and fine metal craftsmanship.
这类铁尺多出土于汉代中高级贵族墓葬，墓主多为文职官吏或掌管度量衡的官员，是身份与职掌的具象象征。由于铁材质易氧化锈蚀，保存难度远高于青铜与玉器，完整留存至今的错金铁尺数量极为稀少，全国现存完整器不足十件，多数仅为残片。它们大多收藏于地方考古机构与库房，极少在常设展览中亮相，因此大众对这类度量衡文物的认知度极低，是汉代金属文物中十分冷门的门类。
Such iron rulers are mostly unearthed from middle and high-level noble tombs of the Han Dynasty, whose owners were mostly civil officials or officers in charge of metrology, serving as a tangible symbol of status and official duties. Due to the easy oxidation and rust of iron, it is much more difficult to preserve than bronze and jade. Very few gold-inlaid iron rulers have survived intact to this day, with fewer than ten complete pieces existing nationwide and most being only fragments. Most of them are collected in local archaeological institutions and warehouses, and rarely appear in permanent exhibitions. Therefore, the public has very low awareness of such metrological relics, making them a very obscure category of Han Dynasty metal cultural relics.