To get a nematicide to effectively control the cereal cyst nematodes,Heterodera avenae,two new seed coating nematicides (Methylene (bis) thiocyanate),GannongⅠand Gannong Ⅲ,and four nematicide compounds,GannongⅠcombined with 60% Imidacloprid (0.5∶0.5),GannongⅠcombined with 25% Triticonazole (0.5∶0.5),Gannong Ⅲ combined with 60% Imidacloprid (0.5∶0.5),Gannong Ⅲ combined with 25% Triticonazole (0.5∶0.5) were tested on controlling the cereal cyst nematode H. avenae in Henan Province.Wheat seeds were treated with the six seed-coatings before sowing.The number of cysts were counted at three different wheat growing stages,and eggs in nematode and wheat yield were investigated at harvesting time.The results indicated that the number of eggs from cyst and cysts in soil with different nematicide treatments were clearly reduced after seed coating.Gannong Ⅲ and Gannong Ⅲ combined with 25% Triticonazole (0.5∶0.5) reduced the eggs for 37.59% and 32.86% and increased the yield for 16.09% and 26.40%,respectively.Gannong Ⅲ combined with 25% Triticonazole (0.5∶0.5) and Gannong Ⅲ restrained the female as 72.27% and 70.29%,and the cysts as 50.74% and 51.61%,respectively.The data demonstrated that Gannong Ⅲ combined with 25% Triticonazole (0.5∶0.5) and Gannong Ⅲ combined with 60% Imidacloprid (0.5∶0.5) controlled the cereal cyst nematode effectively and increased the yield of wheat,with a theoretical rate of 40.35% and 44.39%,respectively.Gannong Ⅲ combined with 25% Triticonazole (0.5∶0.5) was suitable to apply widely to control the cereal cyst nematode under natural field conditions.