Agricultural herbicide and application thereof

The invention discloses an agricultural herbicide. The agricultural herbicide comprises at least two active ingredients selected from phenmedipham, desmedipham and quizalofop-p-ethyl and further comprises a surface active agent, a low-risk organic solvent and a stabilizer; the surface active agent comprises an ionic surface active agent and a non-ionic surface active agent. The agricultural herbicide disclosed by the invention uses the surface active agent to replace isophoron as a high-risk solvent, n-methyl-pyrrolidone and the like in the prior art so as to play a dissolving role in an emulsifiable concentrate preparation, therefore, the efficacy of the herbicide is improved, and the safety of the herbicide for human bodies and environment in the production and application is improved.