In order to improve the quality and safety of gunpowder column, the automatic filling and pressing machine was developed based on certain gunpowder column pressing technique feature. The machine uses pneumatic execution device, and adopts PLC to control parameters in pressing process to realize automatic control in pressing process. The application results show the machine can ensure accuracy of weighing in 88±1 mg, height in 3.92±0.02 mm, higher than the requirements of the machine. It has high degree of automation, safe and reliable.