For solving the problem of low level of automation, high energy consumption, low safety coefficient in waste ammunition treatment, research on solid engine explosive dumping technology. Introduce mainstream automatic ammunition split technologies of overseas, use milling technology to clean engine, adopt high pressure water jet to wash residue. Put forward a trituration method combing automatic energetic material cutting and high-pressure water washing for shell reutilization. The application result shows that the method can improve split and trituration efficiency, reduce environmental pollution and ensure shell reutilization. It has some application reference value.