[Objective] To analyze the characteristics of eco-enviroment evolution in Ningxia Hui Autonomous Region in order to provide theoretical basis for eco-environment construction.[Methods] By building the eco-environmental evaluation system based on the press-state-response model, the characteristics of the eco-environment in Ningxia Hui Autonomous Region from 1986 to 2012 were evaluated.[Results] (1) The pressure of eco-environment trended to increase in Ningxia Hui Autonomous Region during 1986 to 2012, so it should strengthen the implementation of industrial restructuring, energy conservation and emission reduction, recycling economy and other measures. (2) The ecological environment showed a trend of increased volatility, and the ecological environment improved gradually. (3) The ecological response scores of Ningxia Hui Autonomous Region tended to increase, it indicated that the investment of govern and protection level increased in eco-environment in Ningxia Hui Autonomous Region. In the implementation of the relevant eco-building measures, the pressure of human activities on the environment decreased, the quality of ecological environment improved gradually. (4) The ecological environment comprehensive score of Ningxia Hui Autonomous Region showed a fluctuated upward trend. [Conclusion] During the past 27 years, the quality of ecological environment is increasing in Ningxia Hui Autonomous Region.