Abstract: Abstract：The species diversity of arbuscular mycorrhizal fungi in the soil of different degree disease of the greenhouse vegetable root-knot nematodes, was investigated. Seven species belonging to four genera were isolated and identified from the rhizosphere soil sample, including 1species of Acaulospora, 4 species of Glomus, 1species of Diversispora, 1species of Paraglomus. Glomus and Diversispora were the dominant genera. Diversispora spurcum, Glomus etunicatum and Glomus mosseae were dominant species in the rhizosphere soil of the plant happening disease of the tree-note nematodes. It is helpful to screen out the better species of resisting disease of the eoot-knot nematodes and use for the greenhouse vegetable.