The roller extrusion granulation equipment equipped on the compound fertilizer production line is an upgraded granulation equipment developed and produced through innovative reforms in the original technology based on market demand. Not only does it use dry extrusion technology, but it mainly relies on external pressure to force the material to pass through the gap between two opposing rotating rollers and compress it into sheets. The actual density of the material can be increased by 1.5-3 times to achieve a certain strength standard. Especially suitable for increasing the proportion of product stack. The equipment has high operational flexibility and a wide range of adaptability. The squeezing force can be adjusted by hydraulic pressure. The structure of this equipment is not only scientifically reasonable, but also has low investment, fast results, and good economic benefits.