设置自<a href="./?mention=秦国">秦国</a><a href="./?mention=商鞅">商鞅</a>变法,以赏军功,共分二十级:一级<a href="./?mention=公士">公士</a>,二<a href="./?mention=上造">上造</a>,三<a href="./?mention=簪袅">簪袅</a>,四<a href="./?mention=不更">不更</a>,五<a href="./?mention=大夫">大夫</a>,六<a href="./?mention=官大夫">官大夫</a>,七<a href="./?mention=公大夫">公大夫</a>,八<a href="./?mention=公乘">公乘</a>,九<a href="./?mention=五大夫">五大夫</a>,十<a href="./?mention=左庶长">左庶长</a>,十一<a href="./?mention=右庶长">右庶长</a>,十二<a href="./?mention=左更">左更</a>,十三<a href="./?mention=中更">中更</a>,十四<a href="./?mention=右更">右更</a>,十五<a href="./?mention=少上造">少上造</a>,十六<a href="./?mention=大上造">大上造</a>,十七<a href="./?mention=驷车庶长">驷车庶长</a>,十八<a href="./?mention=大庶长">大庶长</a>,十九<a href="./?mention=关内侯">关内侯</a>,二十<a href="./?mention=彻侯">彻侯</a>。彻侯以一县为<a href="./?mention=食邑">食邑</a>,并得以自置吏于封地;关内侯有食邑、封户,只能衣租食税而已;大庶长以下十八等,皆有岁俸。临战,斩敌首一级(颗),即赐爵一级。秦朝、汉朝沿用此制。