The invention relates to a method for reducing the dicing crushing rate of traditional Chinese medicine raw materials. The method comprises the following steps that 1, firstly, the traditional Chinesemedicine raw materials are sliced by a slicing device; 2, the slice-shaped medicinal materials sliced by the slicing device are transported into a drying unit through a conveyer belt, and the dryingunit carries out the moisture removal treatment on the slice-shaped medicinal materials; and 3, the dried slice-shaped medicinal materials on the conveyor belt are diced by a dicing device. The methodis convenient to realize, can effectively reduce the crushing rate of the traditional Chinese medicine raw materials when the traditional Chinese medicine raw materials are diced, can effectively improve the dicing efficiency of the traditional Chinese medicine raw materials at the same time, and meets the current use requirements.