Growth of protocorm of Cymbidium eburneum induced on basal culture medium of 1/2 MS by four fungal elicitors,which were isolated from the roots of Cymbidium goeringii and Dendrobium sinens was examined in our study.The results showed that three fungal elicitors out of four considerably promoted the growth and differentiation of protocorm,and that the inducing effects were in the order of HF26>CF6>CF8.Compared with the control group,HF26 strain was found to increase the fresh weight of C.eburneum(P<0.05).The increased rates in fresh weight were 96.13%,86.86% and 61.18%,while the increased rates in dry weight were 130.70%,124.30% and 96.50%,respectively(P<0.01).In addition,CF8 strain could promote the number of roots;HF26 strain was beneficial to multiplication of protocorm;CF6 strain had a remarkable effect on seedling establishment and differentiation of root primordia.It can be concluded that different fungus have different effects on the growth of protocorm of Cymbidium eburneum in different growth stages.