Abstract: Because of the shortened，continuous cropping rotation period，soil nematode was increasingly serious，soil borne diseases，soil pests and soil nutrient imbalance，continuous cropping obstacle has been difficult to solve the problem of facility agriculture.In the face of economic，security risk of nematode and pesticides bring，no food safety hidden trouble and can achieve physical control technique of nematode control effectively，is an important content of current greenhouse nematode control technology research and application.