This article compares the grammar of Ei Language with that of Chinese and Zhuang from the following perspectives: part of speech,phrases,and syntactical structures. The result is that the grammar system of Ei Language is affected greatly by that of Chinese,maintaining chiefly the characteristics of Chinese and few of Zhuang. In conclusion,Ei Language,which is the deep-contact type of Chinese-Kam Tai languages,is not Chinese or a Kam-Tai language,but a distinctive language that fused Chinese,Zhuang and Kam Sui together