Objective To compare the efficacy of vedio soft lens and MCcoy laryngscope for difficult glottis exposure.Methods sixty aldult patiends scheduled for eletive surgery under general anesthesia whose glottis exposure difficult.were randomized into 2 groups (n=30,each),group edio soft lens and group MCcoy laryngscope,The glottis exposure time, intubating conditions time from exposure of glottis to completion of tracheal intubation and incidence of postoperative sore throat and throat bleeding were recorded and compared bettween the 2 gyoups.Results Compare with group edio soft lens,group MCcoy laryngscope the glottis exposure time was siginificantly longer（p<0.05） , the time from exposure of glottis to completion of tracheal intubation longer.（p<0.05）sore throat and throat bleeding between the 2 groups.Second attempt 2 times in group MCcoy laryngscope.Hypertension and tachycardia were founded at group MCcoy laryngscope.Conclusion vedio soft lens is superior to MCcoy laryngscope in the management of difficult intubation in term of glottis exposure and success rate of tracheal intubation at first attempt