Abamectin microcapsule suspending agent and preparation method thereof

The invention discloses an abamectin micro-capsule suspending agent and a preparation method thereof. The abamectin micro-capsule suspending agent comprises the following components: 2-15% of abamectin, 1-5% of an emulsifier and the balance of water. 2%-15% of a wall material; 3%-8% of a wetting agent; 2%-5% of a dispersant and 2%-5% of an antifreeze agent; 3%-12% of a stabilizer; 0.005% to 0.05% of a defoaming agent; 0.2-1% of an auxiliary agent, 1-2% of an emulsifier and the balance of water. Mesoporous silicon dioxide is selected as a wall material, high-molecular organic matters are not used, the environmental compatibility is improved, and meanwhile, the slow-release coating also has good processing stability and good slow-release performance. According to the invention, only the organic solvent is used during preparation of the microcapsule, and the organic solvent can be recycled, so that water is used as the solvent instead of the organic solvent during subsequent preparation of the microcapsule suspe