Assistant composition for preparing suspending agent, flufenacet water suspending agent and preparation method thereof

The invention belongs to the field of pesticides, and particularly relates to an assistant composition for preparing a suspending agent, a flufenacet water suspending agent and a preparation method thereof. The assistant composition comprises the following components in parts by weight: 5-20 parts of a synergist, 5-15 parts of a wetting dispersant and 1-3 parts of a stabilizer, wherein the synergist is one or a mixture of more of polyether, fatty alcohol ether and organic silicon; the wetting dispersant is one or any combination of more of high-molecular acrylate, polycarboxylate and polyester; and the stabilizer is an EDTA sodium salt. The assistant composition is used for preparing the flufenacet water suspending agent, and the storage stability and the application performance of the preparation are improved, so that the effects of reducing the medication cost, reducing the amount, increasing the efficiency and protecting the environment are achieved. 本发明属于农药领域，具体涉及一种用于制备悬浮剂的助剂组合、氟噻草胺水悬浮剂及其制备方法，按重量份计，其助剂组合物