In order to introduce species of high forage value and adapted to the condition of Jashlobar rangelands, this study was conducted in jashloubar Rangelands station 5 years (l999-2003).Nine range species were seeded in fall. A completely randomized block design was applied for analyzing of data. The treatments were range species at 9 level and replications were 3 sites. The results showed that Secale montanum, Agropyron elongatum and Bromus tomentellus were established well and Seacle montanum had the best results in the Jashlobar conditions. Therefore this species are recommended for range improvement in the same areas.