A puncher has a base, a pressing lever and two cutters. The base has a base body, a bottom cover, at least one scrap-receiving space and at least one scrap-releasing hole. The bottom cover is combined rotatably with the base body. The at least one scrap-receiving space is formed between the base body and the bottom cover. The at least one scrap-releasing hole is defined in the base and selectively communicates with the at least one scrap-receiving space after the base body being rotated relative to the bottom cover. The pressing lever is pivotally connected to the base. The cutters are mounted on the base and are capable of being driven by the pressing lever and longitudinally moving relative to the base. Accordingly, a puncher having a scrap-releasing capability in a rotating manner to release scraps from the puncher easily and conveniently is provided.