Organic fertilizer equipment is the most important necessary granulation equipment in the processing of feed and the production and processing of organic fertilizer and compound fertilizer in each aquaculture industry. The granulator can be produced normally, which has a direct relationship to the economic benefits of the production enterprise, so the accurate operation of the granulator is often the most important. Organic fertilizer granulation equipment with a high degree of automation, extrusion granulation equipment, the representative products of this process also have a large market for double roller press granulator, at room temperature, no drying a molding and the realization of completely manual automatic production has been praised by the organic fertilizer production and processing crowd, the roller extrusion granulation machine has quickly become the star product in the organic fertilizer production line processing industry. After the advent of organic fertilizer wet granulator, rotary drum granulator and other equipment are also in different aspects to meet the processing needs of different people for organic fertilizer, organic fertilizer processing equipment in the granulation equipment is also more and more rich. Organic fertilizer granulation equipment as an important molding process in organic fertilizer production and processing, the impact on the production of complete sets of organic fertilizer equipment is quite large, the strength, uniformity, size of finished organic fertilizer particles are affected by the granulation equipment, so we will pay special attention to the selection of pelletizer when applying organic fertilizer granulation equipment for organic fertilizer production. We need to have a thorough understanding of the most basic equipment in the market to make the right choice.