| Qie Yun Test was written undetailed in time, by Li Ye, a man with no history but who said he came from Jiang Du. The writer insisted that it included many predecessors' thoughts. The rhythmic graphs also show us a very intricate phonetic system. So it deserves our probing in the extreme. The thesis presents a comparatively systematic study on Qie Yun Test, comparing it with the correlative rhythmic dictionaries or graphs, the synchronous sound and diaphonetic system under the whole direction of the historical and comparative argument and looking-through and separating method, and then try to recognize what the sound elements is, what phonetic system it presents and its station in the history of phonetics. The whole thesis is composed of six chapters. |