Abstract: Nitraria is one of ancient native species living in desert areas. There are four species of it in Inner Mon golia region. 1. Nitraria sibirica pall 2. Nitraria tangutorum Bobr 3. Nitraria roborowskii Kom 4. Nitraria sphaerocarpa Maxim In dry areas of central Asia, Nitraria is the relic species in the ancient Tertiary period and one of the mass plants in desert and semi-desert zones. It is the better plant to fix shifting sands with higher economic vaulue, It has been studied that Nitraria has better characters for resisting drought, high temperature, poor soil, strong winds and being covered by sands. In the fragile ecological envovmment, to pretect and breed natural wild plants, such as Nitraria, will play an important role in fixing shifting sands, exploring and utilizing natural resources.