The width of cut tobacco is an important index to evaluate sensory qualities and physical indices of tobacco products. The rapid measuring instrument of cut tobacco showshigh efficiency and accuracy. This study based on a kind of cut tobacco set up the sampling methods about the rapid measuring instrument. Meanwhile, tobacco width measuring methods by using this instrument and using the plastic rod are contrasted. Moreover, this paper had done some work of application about different tobacco cuts including conditional tobacco, expanded tobacco and tobacco flake and different types of tobacco cutters. The results show that the rapid measuring instrument of tobacco width is more convenient and accurate than conditional measuring method. By comparing three kinds of tobacco and different tobacco cutters, standard deviation of expanded tobacco is the largest and its of tobacco flake is the smallest, and tobacco width of YS14 tobacco cutter is more stable than its of Topspin bobacco cutter.