Abstract: The rocky desertification management demonstration zone in Du′an County of Guangxi was cited for a case stu-dy.An index system was established for evaluation of benefit of ecological management of rocky desertification,using a fuzzy comprehensive evaluation model.Results show that the ecological benefit,economic benefit and social benefit of the unmanaged zone was general,poor and very poor,respectively,and turned out to be general,general and good,respectively after the management.The pre-management zone was graded poor in comprehensive evaluation,and the post-management zone was graded general,which suggests that the management of the rocky desertification in Du′an County has made certain progress.