本文首先以“张、章、装、撞、双”为代表字考察了官话方言里宕江摄阳声韵知系字的读音分合类型,其中二组型“张章≠装撞双”是官话方言中最普遍的,又以“开口合口”这一小类最多。然后具体分析了各种类型的情况,最后结合音韵材料讨论《切韵》以来官话方言宕江摄阳声韵知系字的演变。 In this paper, we first examine the phonetics division of phonetics of Dangjiang literatures in Dangjiang River in the dialect of Chang dialect with “Zhang, Zhang, Zhuang, Zhuang, Shuang ” as the representative word. “Is the most common dialect in Mandarin, but also ” open mouth “this subclass most. Then it analyzes various kinds of situations concretely. Finally, combining the phonological materials to discuss ”Qie Yun", the evolution of the dialect of prosody in the Dangjiang River since the dialect of Dangjiang River has been discussed.