Suspension agent is a flowable suspension of sticky silk made by mixing pesticide raw materials, carriers, and dispersants, and ultrafine grinding using wet method. It is a stable liquid-solid system composed of insoluble or slightly soluble solid raw materials that are evenly dispersed in water through ultrafine grinding with the help of certain additives, forming a highly suspended and flowable liquid solid system with small particles. Suspension agents are usually composed of active ingredients, dispersants, thickeners, anti settling agents, defoamers, antifreeze agents, and water. The content of effective ingredients is generally 5% to 50%. The average particle size is generally around 3 microns. It is a new dosage form for pesticide processing No dust hazard, safe for operators and the environment; ② Using water as the dispersion medium, there are no flammable or harmful issues caused by organic solvents; ③ Compared to wettable powders, different particle sizes of raw materials are allowed to be used, while anti settling agents generally refer to suspension agents. Suspension agent refers to a preparation that uniformly disperses solid pesticide raw materials in water with particles below 4 microns, with the international code SC. Due to the fact that SC does not have the problem of dust flying like WP, is not flammable and explosive, has a small particle size, high biological activity, a large specific gravity, and a small packaging volume, making it safer and more environmentally friendly compared to other pesticide formulations. Therefore, SC has become the pesticide variety with a larger tonnage in the new water-based pesticide formulations.