Abstract: During the investigation of nematode-trapping fungi in the western area of Yunnan,707 soil samples were collected from the regions where altitude range from 740 m to 4200 m.Fourty two species of these fungi belonging to 4 genera,including one undescribed species (Dactylella zhongdianensis) and two new records of China (Stylopage anomala,Monacrosporium inquisitor),were isolated by the method of baited plates.In these regions Arthrobotrys oligospora is the preponderant species.The nematode-trapping fungi are more abundant in the regions where the altitudes vary from 1600m to 2500m and in the places of subtropical evergreen broad-leaved forests.