Discussion on Similarities and Differences between Disyllabic Words of Sino Vietnamese and Chinese

On the basis of modern Chinese vocabulary, this essay quantitative analyzes the similarities and differences between the meaning of disyllabic words of class A ,class B (829 words) in The grade outline of Chinese vocabulary and characters and the corresponding Sino Vietnamese words,we get the conclusion: the meaning of about 65% words of them are fundamental identical; about 29% have similarities and differences; only about 6% are different. Combined with pragmatic failures analysis, we believe Sino Vietnamese words will contribute to teaching Chinese and teaching Vietnamese as a second language.