The invention relates to a bow used for mutually switching between a cam bow and a recurve bow. The bow comprises a bow head component and a universal component, wherein the universal component comprises a bow body, a connecting end is arranged on the bow body, a mounting end is arranged on the bow head component, the mounting end of the bow head component is mounted on the connecting end of the universal component through a connecting piece, the mounting end and the connecting end are of detachable mounting structures, the bow head component is a cam bow head or a recurve bow head, and the cam bow head or the recurve bow head is assembled with the universal component to form the cam bow or the recurve bow. According to the bow, the universal component is utilized to realize rapid assemblyand disassembly of the cam bow and the recurve bow, so that the switching use of the cam bow and the recurve bow is realized, the use cost of a user is saved, and the operation is convenient.