[Objective] The effects of grain for green project on soil quality was explored in order to provide theoretical bases for revegetation and reconstruction of abandoned farmland in semi-arid loess hilly region.[Methods] Comprehensive evaluation of soil physio-chemical factors sampled in different revegetated farmlands was conducted by AHP method in the demonstration area at Zhongzhuang village of Pengyang County, Ningxia Hui Autonomous Region of loess hilly area.[Results] Soil moisture was the main factor that affected soil environment, its weighted value reached 0.210. Followed by soil total porosity and soil organic matter content, their weighted values reached 0.136 and 0.108, respectively. Meanwhile, soil capillary capacity, soil available nitrogen content and soil urease content had also played very important roles on the soil environment, their weighted values were 0.085, 0.071 and 0.064 respectively.[Conclusion] Through comprehensive evaluation on the environmental impacts in terms of soil chemical properties, physical properties and biological activity, to some degree, woodland, terraces, artificial and natural grassland have been improved regarding to soil environmental quality. Among which, terraced field was observed been improved as the greatest type.