The invention discloses a high-sustained-release-performance efficient weeding composite material. The high-sustained-release-performance efficient weeding composite material is prepared from the raw materials: sustained-release modifying filler, a soil conditioner, silica gel, tourmaline powder, fly ash, meerschaum powder, 2,4-dichlorphenoxyacetic acid, 2,4,5-trichlorophenoxyacetic acid, sodium polymetaphosphate, fluroxypyr, aminosulfonic acid, asarol, zinc acetate, sodium polyacrylate, dichloroquinolinic acid, Carfentrazone-ethyl, mesotrione, penoxsulam, pyribenzoxim, flucetosulfuron, dichloroquinolinic acid, cyhalofop-butyl, Metribuzin, pyrazosulfuron-ethyl, ferulic acid, hexadecyldimethyl ethyl ammonium bromide, sodium lauryl sulfate, glyceryl linoleate, butyl acetate, potassium dihydrogen phosphate and sodium tetraborate. The weeding composite material disclosed by the invention has excellent sustained-release performance, weeding pesticides can be efficiently released, the efficiency and quality of weeding are improved, meanwhile, the weeding composite material has a regulating effect on soil, and thus, soil hardening is avoided.