Different subtypes of A-not-A question in Chinese are all generated through the mechanism of “Positive-Negative Reduplication” (and “Deletion”) with different restrictions and conditions, which can provide explanations for many basic commons and characteristic among these subtypes of A-not-A question and some relevant interrogative sentences. The generation abilities of A-not-A question among the different constructions are variable. And the generation mechanisms of A-not-A question and “K-VP” question play important role in issues on the confusion of classification, mixed sentence in dialects and whether it can be embedded.