;Tonggu is Jiangxi Northwest region and Hakka population more places, where both have Hakka dialect and Gan dialect. Hakka and Gan dialect there are similarities, there are also different plac. In this paper, the Tonggu Hakka dialect as the research object. Discussion of this study contains phonology and lexicon, but we mainly focus on the former,the latter is auxiliary. With this research and analysis,we can understand the evolution and development of the phonological phenomena in the history of Tonggu, can be more in-depth understanding of Hakka.
There are six chapters in this study. The first chapter is the introduction, which explains the motivations and objectives, the research methods and steps, the literature review and discussion, and briefly explains the geographical and historical profiles of Tonggu area. The second chapter is the system of Tonggu Hakka. It illustrates voice, rhyme, tone system, and features of tone sandhi and Literary and colloquial readings. The third chapter is the comparison between the Tonggu Hakka and the the medieval phonology, and then comparing the phonetic variations of today’s of voice, rhyme, tone system. The fourth chapter summarizes the voice characteristics of the Tonggu Hakka dialect, and comparisons with other dialects through, we can use voice, rhyme and tone to discuss the voice phenomenon and evolution. The fifth chapter is the discussion of the vocabulary of Tonggu Hakka. It use Tonggu,Sandu of Jiangxi northwest region, Ningdu and Ganxian of Jiangxi south region, and Hometown XingningHakka to compare vocabulary, and timely supplemented by other points dialect vocabulary. Observe the impact of language contact,and then sum up the characteristics of vocabulary. The sixth chapter is the conclusion. It summed up the voice characteristics of the Tonggu Hakka and lexical features, at the end proposes the suggestions of the study.