[Objective] Ecological benefit of combating desertification in east edge of Hobq desert was studied in order to provide scientific reference for benefit evaluation of desertification control.[Method] The assessment index system of ecological benefits of combating desertification was established, and the ecological benefit was evaluated by analytic hierarchy process and fuzzy comprehensive evaluation method.[Results] Among the ecological benefit evaluation indicators, the top three were vegetation coverage, aboveground biomass and grass height. Vegetation factor was more important than other factors in desertification control, and vegetation recovery had a significant impact on the management of the desertification. Based on the fuzzy comprehensive evaluation, the assessment index value of ecological benefit of combating desertification in the east edge of Hobq desert was 53 as the general level. Farmers generally believed that sand control had obviously improved the local ecological environment, and most of the farmers had a higher degree of recognition for the desertification control.[Conclusion] With the promotion of ecological policies and management measures, management benefit will show a good sitution. The farmers' awareness of eco-environmental protection is poor and need to be strengthened, and their cultural level need to be improved.