The invention discloses a traditional Chinese medicine wall breaking and crushing device for decoction piece processing. The device is characterized in that the traditional Chinese medicine decoctionpieces are sequentially crushed by a primary crushing device, a crushing roller crushing device and an airflow crushing device, wherein the primary powder device is used for primary crushing of the traditional Chinese medicine decoction pieces, so that the crushing granularity of the traditional Chinese medicine is 30-50 meshes; the crushing roller crushing device is used for continuously crushingthe traditional Chinese medicinal materials to enable the particle size of the traditional Chinese medicinal materials to be 80-120 meshes; the airflow crushing device is capable of rapidly sprayinghigh-pressure gas into a crushing chamber through a spray valve, so that the traditional Chinese medicinal materials in the crushing chamber are crushed and broken by impact, and the particle size reaches 300-500 meshes, and as a result, the wall breaking effect is realized. According to the method, traditional Chinese medicine decoction pieces are subjected to three-stage crushing, so that the energy consumption is greatly saved, and the working efficiency is improved; in addition, the traditional Chinese medicine wall breaking and crushing effect is good, so that effective components in thetraditional Chinese medicinal materials can be fully released, and as a result, the utilization rate of the materials is greatly increased, and as a result, the product quality is improved, and the economic benefits are increased.