Abstract: The root-knot nematodes which is harmful to vegetable production is one of the important diseases.It leads to continuous cropping obstacles and soil-borne disease of vegetable that green house vegetable is rapid development in Inner Mongolia in recent years,and vegetable production is continuous,and planting is same species.especially root-knot nematodes is the main disease.This paper focus on the research progress on the root-nematodes of home and abroad occurrence.species.dominant species.control and so on.It should be reference to service three-dimensional rural issue.