| In Chinese, the words "Dao", "Que" and "Fan’er" are modal adverbs with turning means. In terms of the native speakers of Chinese, the modal adverbs are not complex, but the foreign students make mistakes easily in the acquisition of "Dao", "Que" and "Fan’er", therefore it is necessary for us to study on the error analysis of these three adverbs. This paper firstly reviews the related research of Chinese ontology modal adverbs. Based on the researches of corpus, comprehensive use of various methods of literature research, comparative analysis, induction and deduction, investigates the use case of students modal adverbs "Dao","Que" and "Fan’er", and then compared them with English.We summarizes the students’acquisition of modal adverbs on error types are divided into:wrong order, misuse, omissions and errors by adding. The reasons of error formation are discussed, that the errors made by foreign students mainly produced by the negative transfer of the mother tongue and the target language is one of the potential misleading generalization effect, caused by teaching.Finally, based on the conclusion of the study, we aims at the actual teaching Chinese as a second language, some suggestions are put forward. |