Fuente: WIPO "tobacco agriculture" The utility model discloses a tool for measuring the size of a tobacco leaf. The tool comprises a long ruler, a short ruler and a fixing buckle, the long ruler is provided with a first sliding groove,and the short ruler is provided with a second sliding groove. The fixing buckle sequentially penetrates through the first sliding groove and the second sliding groove to connect and fix the long ruler and the short ruler; under the action of external force, the long ruler and the short ruler can rotate relative to each other with the fixing buckle as the center, that is, the short ruler can freely slide in the first sliding groove of the long ruler through the fixing buckle, and the long ruler can also freely slide in the second sliding groove of the short ruler through the fixing buckle. Thedevice is simple in structure and easy to carry, labor investment in measurement can be reduced, and measurement speed can be effectively improved.