This study is based on the concept of water environment carrying capacity and is combined with the current water environmental situation. Through the establishment of evaluation index system and the application of vector norm method

the evaluation of water environmental carrying capacity in Southern Shaanxi Provine from 2000 to 2007 are made. Results show that the change of water environmental carrying capacity has a fluctuated tendency

but becomes more and more gently. According to the specific circumstances of it

some countermeasures are proposed:strengthening regional water conservation and protecting water sources

revising industrial distribution

speeding up the construction of sewage treatment facilities

increasing small-scale water conservancy project construction

and establishing water resource compensation mechanism.