It is an agricultural organosilicon adjuvants that is a new-generation agricultural spray adjuvant developed by the Xinan Chemical, it has superior surface activity than that of ordinary surfactants. It has super and high spread, permeability, wet, dispersive and mixture characteristics. It can be used as spray improvement agent and leaf-surface absorption adjuvant. Sometime, it can also be used as spray activator to achieve target of enhancing prevention and curing effect, reducing dosage, reducing water consumption and reducing pesticide residue.