The invention belongs to the technical field of tobacco processing, and particularly relates to a threshing and re-drying processing method for adjusting and controlling a tobacco strip structure andthe stem ratio of leaves. The method is completed by an added tobacco strip structure control step after threshing and stem-removing. The technical thought is that on the basis of the conventional threshing and re-drying technical process, the tobacco strip structure control step is added after threshing and stem-removing; and in the tobacco strip structure control step, in order to acquire the final desired tobacco strip structure, tobacco strips are divided into three parts according to the sizes of the leaves after threshing and stem-removing, and the three parts are processed respectively.The method can achieve effective adjustment and control of the threshed tobacco strip structure, can remove tobacco stems in overlarge leaves having high a stem ratio contribution degree in the threshed tobacco strips, can avoid repeated processing of qualified tobacco strips, can effectively lower the stem ratio, can reduce threshing and crashing, can optimize the tobacco strip structure, can improve the yield, is high in applicability, and is good in feasibility.