“江”字最早见于金文 ,在上古共同语中属“见”母“东”部 ,音值为 [ku ]。南北朝后期 ,由于南部方言的地位提升和影响扩大 ,作为南部方言基本词汇“江”的方言读音“[ka ]”遂进入共同语 ,并最终取代了“[ku ]”音在共同语中的地位 ;后又受到来自北方民族发音习惯的影响 ,至明代 ,[ka ]被直接腭化为 [ ia ]。“江”字音读的变迁 ,反映了方言、外语等因素对语音变化的重要影响。前人关于“江”的 [ka ]音是由其 [ku ]音自然演变而形成和 [ ][ ‘][ ]是由于“ -i-”“ -y -”介音的影响而形成的观点还需要重新讨论 The earliest word “Jiang” was found in Jinwen, which belongs to the “mother” “east” part in the ancient common language, and the sound value is [ku]. In the late Northern and Southern Dynasties, the pronunciation of the dialect “[ka]”, which is the basic vocabulary of the southern dialect, entered the common language and eventually replaced the status of “[ku]” tone in the common language due to the elevation of the southern dialect and the expansion of its influence. Later, it was influenced by the pronunciation habits of the northern peoples. By the Ming Dynasty, [ka] was directly palatalized as [ia]. The change of phonetic transcription of “Jiang” reflects the important influence of dialects and foreign languages ​​on phonetic change. The previous [ka] tone of “Jiang” was formed by the natural evolution of its [ku] tone and [] [’] [] was formed by the influence of the “-i-” “-y-” Still need to re-discuss