Abstract: From the ecological roles of the canopy layer，litter layer and soil layer，the paper probed into the eco-hydrological effects of five kinds’ main shrubbery in the forest grass catchment of the Qilian Mountains. The results show as follows：（1）during rainy season，the average interception rates are as follows：Berberis dasystachya 22.46%，Salix gilasnanica 20.48%，Caragana jubata 16.76%，Potentilla fruticosa 10.42%，Caragana tangutica 6.96%.
（2）The maximum water holding rates of five kinds shrubbery’s litter are 1.6～4.0 times of five kinds shrubbery litter’s theirs weights；their maximum water holding amounts and maximum available water holding amounts are 23.83～134.95 t·hm^-2 and 17.25～83.62 t·hm^-2. （3）The soil maximum and available water holding amounts decrease with the increase in soil depth，they are 2 354.50～3 409.00 t·hm^-2 and 518.5～1015.50 t·hm^-2，respectively. （4） The mantle steady infiltration rates of various shrubbery land soils variate in the range of 7.88～96.01 mm·min^-1，the maximum belongs to [Salix gilasnanica] of 96.01 mm·min^-1，then belonging to Caragana jubata，Berberis dasystachya，Berberis dasystachya and Caragana tangutica. （5）The capability of five kinds shrubbery’s water conservation is ranged according to their magnitudes as follows：Salix gilasnanica>Berberis dasystachya>Caragana jubata>Potentilla fruticosa>Caragana tangutica. Among them，[Salix gilasnanica] and Berberis dasystachya’s capabilities are near or more than that of [Picea crassofolia，]which indicates that the shrubbery forest has stronger eco-hydrological function.

Key words: the Qilian Moutains, complex watershed, shrubbery forest, eco-hydrology