苗语分湘西、黔东和川黔滇三大方言,其中川黔滇方言又分川黔滇、滇东北、贵阳、惠水、麻山、罗泊河、重安江等次方言。在苗语的方言次方言当中,通行最广的是川黔滇方言川黔滇次方言(简称川黔滇苗语),其范围包括我国贵州的西部、四川南部、广西西部、云南全省和东南亚的越南、老挝、泰国、缅甸、菲律宾以及美国、法国、法属圭亚那、加拿大、德国、澳大利亚、阿根廷等。川黔滇苗语的内部一般都比较一致,但是在不同的国家之间,由于所处的政治、经济、文化和地理等环境不同,受不同语言等多种不同因素的影响, Miao language sub-divisions of the Western Hunan, Guizhou and Sichuan and Guizhou three dialects, including Sichuan, Guizhou and Yunnan dialects are divided into Sichuan and Guizhou, Yunnan, northeast Yunnan, Guiyang, Huishui, Mashan, Luo Po River, heavy An Dialect and other dialects. Among the dialects of Miao dialect, the most widely used are the dialects of Sichuan, Guizhou and Yunnan dialects (Sichuan, Guizhou and Yunnan Miao dialects), whose scope includes the west of Guizhou, southern Sichuan, western Guangxi, Yunnan province and Southeast Asia, Vietnam, Laos, Thailand, Myanmar, the Philippines and the United States, France, French Guiana, Canada, Germany, Australia, Argentina and so on. Sichuan, Guizhou and Yunnan Miao generally within the more generally, but in different countries, due to the political, economic, cultural and geographical environment, by different languages ​​and other factors,