A-not-A question is a subtype of interrogative questions, which can be found in some languages, especially in Chinese. According to the historical studies of A-not-A questions, Chinese A-not-A questions originate from classical Chinese. Many researchers have studied different aspects of A-not-A questions, this thesis will do research on the role of A-not-A questions in interrogative questions, the derivational process of A-not-A questions and the adjuncts in A-not-A questions. In this paper, five-group division system is adopted and A-not-A questions play an independent role in interrogative questions. In order to analyze the derivation process of A-not-A questions, a new theoretical framework DM (Distributed Morphology) and feature checking theory are applied. As for the adjuncts in A-not-A questions, this paper will explain the distribution and classification of adjuncts on the basis of Intervention Effect.