Weeding suspending agent and preparation process thereof

The invention discloses a weeding suspending agent. The weeding suspending agent is characterized by comprising the following components in percentage by weight: 25-45 percent of dithiopyr, 40-70 percent of water, 1.5-2.5 percent of cosolvent, 1-3 percent of wetting agent, 1.5-3.5 percent of dispersing agent, 0.5-1 percent of defoaming agent, 1-2 percent of thickening agent and 0.5-1 percent of preservative. The weeding suspending agent has the advantages that water is used as a solvent, so that no dust drifts in application, the grinding particle size is small, which is convenient for plants to absorb, environmental pollution is reduced, and the safety of transportation and storage is improved; and the weeding suspending agent confirms to the requirement of green agricultural production and has the effects of good stability, freeze proofing, anticorrosion and good weeding effect.