Aiming at the situation of abandoned ammunition decomposition and disassembly operation line and its supporting equipment, single type of ammunition, high labor intensity, high safety risk and low operation efficiency, the current development trend of abandoned ammunition disassembly operation is analyzed. It is proposed to apply the flexible production technology to the disassembly operation of abandoned ammunition, and its application is explored. The results show that the combination of flexible production technology and abandoned ammunition decomposition and disassembly line can greatly improve the applicability of ammunition, reduce the number of operators, reduce the safety risk, and improve the operation efficiency, which can provide a reference for the future development of flexible production technology of abandoned ammunition decomposition and disassembly.