Abstract: The author invested and studied on Dioscorea zingiberensis C.H.Wrigh about its resources amount stories and geological distribution in China in order to protect this species for it is dangerous. Distribution region which includes two parts is defined by author. Not only the distribution area figure is given but also resources stories in the first distribution area is exactly estimated. The conclusions are:on the whole, an average amount is 44.053 g/m², There could be 7.147g error in such an evaluation, relative error is 0.162, this estimate precision is 0.838, reliable is 0.95.

Key words: Dioscorea zingiberensis C. H. Wrigh, resources stories, geological distribution