方言习得包含在第二语言习得里,但与外语习得有着不同的规律。方言习得包括不同方言区之间的相互习得及方言区习得共同语。就汉语而言,虽然各地方言之间差异较大,但仍存在着较为整齐的对应规律,这是方言习得得天独厚的条件。港澳侨生接受过系统的中文教育,母语又是汉语方言,因而对于他们的普通话教学不能等同于一般的对外汉语教学。 Dialect acquisition is included in second language acquisition, but it has different rules with foreign language acquisition. The dialect acquisition includes the mutual acquisition among different dialect areas and the dialect area acquisition common language. As far as Chinese is concerned, although there is a great difference between dialects in different places, there is still a relatively regular pattern, which is a unique condition for dialects. The overseas Chinese in Hong Kong and Macao have received systematic education in Chinese and their native language is Chinese dialect. Therefore, their Mandarin teaching can not be equated with the general teaching of Chinese as a foreign language.