This study on Morphology of Vermipsylla alakurt of animal in Minfeng Country is based on naked eyes、optics microscope、SEM.It indicates that: the size,abdomen color,surface construction of the female Vermipsylla alakurt on yaks' bodies has obvious differences with this species on sheep.The study by optics microscope indicates that: the holding organ of male Vermipsylla alakurt has dislocation phenomenon.The two movable protuberance are usually different in morphology.The study by SEM indicates that: there is protuberance on the holding organ.The protuberance is like a spearhead.It locates between movable protuberance and immovable protuberance,with a very long mane at its end.