As a bilingual dictionary, Danan Guoyu reflects the difference and integration of Chinese and Vietnamese besides double characters. It adopts a clustering mode to classify the vocabulary. It consists of three types: the same function with the same form; different functions with the same form; new words constructions by conversion. On interpretation, it takes the form of semantic associations, translations from Chinese, and quotations from Chinese classics. The bilingual dictionary records the appearance of Chinese vocabulary in Vietnam and the creation of Vietnamese. It presents the differences and collisions between the two cultures and has multiple academic and practical significances such as lexicology, lexicography and philology.