Organic fertilizer can have the development, in addition to the policy and production status, the current status of the soil of China's arable land, so that organic fertilizer has a great space to play, which organic fertilizer equipment is also indispensable, good organic fertilizer equipment, under the same raw materials, can produce high-quality organic fertilizer with less elimination rate, improve the production efficiency of organic fertilizer production line, and in line with the purpose of energy conservation and environmental protection. The circulation of organic fertilizer in the market, generally in powder or granular form, granular organic fertilizer production, to use organic fertilizer granulator to help extrusion plasticity: the use of pressure to make solid materials together, and then the material by two counter-rotating roller extrusion, roller by eccentric sleeve or hydraulic system drive. When the solid material is squeezed, the air between the powder particles is first eliminated to rearrange the particles and discharge the material gap. Organic fertilizer extrusion granulator to prevent the granulation powder material in the extrusion granulation equipment, and then use the external force, the powder material tightly compacted, due to the different external force used, so the molecules to achieve the recombination, so that the material presents cylindrical shape particles. The entire process of generation and extrusion is mechanized to form the material into a round grain shape.