都昌方言虚字“得”作助词用可分为:体态助词、结构助词、语气助词。本文结合汉语史文献及现有研究成果,探讨不同用法的历史层次。体态助词中保留秦汉时完成体态用法,是最早层次,结构助词用法中蕴含中古时期汉语表达法。语气助词“得”是都昌方言特色用法,这种用法最早可以追溯汉代,不晚于宋代。 Duchang Dialect “” can be used as auxiliary word can be divided into: body state particle, structure particle, tone particle. This article combines the history of Chinese literature and the existing research results to explore the different historical levels of usage. It is the earliest level that the body state particle retains Qin and Han Dynasties when it is used in body posture. The usage of structural particle contains the Chinese expression method in the Middle Age. Modal particle “得” is a distinctive usage of dialect in Duchang. This usage can be traced back to the Han Dynasty at the earliest, not later than the Song Dynasty.