For solving shortcoming and defect of grain press technology, and carry out its technology improvement. According to features of hydraulic press and grain, design the press module for automatic press technology. Change artificial and single machine press technology into automatic press technology, and increase explosive preheating based on 8701 explosive feature. The results show that the grain press technology improvement can realize automatic press, and effectively solve shortcoming and defect of grain press technology, decrease labor intensity, and improve press efficiency and intrinsic safety.