Improving irrigation-water use efficiency plays an important role of the most strict water resource management system. Meanwhile, irrigation-water use efficiency is a significant index for evaluating the development of water-saving irrigation. Currently, the process of evaluating irrigation-water use efficiency is one of the key issues for agricultural water utilization. As a result, there are many single evaluation methods, mainly including subjective weight and objective weight of indexes. But these two methods both have disadvantages and advantages. In our study, the main purpose was to treat the inconsistent evaluation results of irrigation-water use efficiency obtained from different single evaluation methods. And seven indexes were chosen from source of water to fields during water transportation to evaluate irrigation-water use efficiency. Firstly, irrigation-water use efficiencies of 12 irrigation districts were evaluated by three single evaluation methods, including Catastrophe theory evaluation method, Entropy method and Analytic Hierarchy Process method, based on the data collected by field investigation. Then, four combined evaluation methods were used to treat the results from single evaluation methods with Spearman as test criterion. If the results from the four combined methods could pass Spearman test, the ranks of every irrigation district can be determined. These four methods are average method, Board method, Copeland method and fuzzy Borda method. On the other hand, if the results could not pass Spearman test, the combined methods were used again, which was named circulation-correction. Results showed Shuangpai irrigation district in Hunan ranked first and Yindan irrigation district in Hubei ranked last. In the mean time, the indexes of the criterion layer constituted by water transportation and distribution of canal system, water use of field and water productivity, were evaluated with the circulation-correction method. Finally, the irrigation districts were divided into three categories by the connections of the ranks of criterion layer and the ranks of irrigation districts so as to find out the main factors affecting the ranks of the irrigation water use efficiencies of irrigation districts. Dujiangyan irrigation district, Shaoshan irrigation district and Shuangpai irrigation district were in Ⅰcategory with the high standard of irrigation-water use efficiency. Dongfengqu irrigation district, Hualiangting irrigation district, Shanxishimen irrigation district and Ganfupingyuan irrigation district were inⅡcategory, which should make a great improvement in one aspect of criterion layer. Zhanghe irrigation district, Sanhulianjiang irrigation district, Zekou irrigation district, Yindan irrigation district, Yahekou irrigation district were in Ⅲ category, which should make all-round effort to build up the irrigation districts. In conclusion, our study provides references for evaluating water-saving implementation and the irrigation water management.%灌溉用水效率是最严格水资源管理制度建设中用水效率控制红线的重要组成部分，也是衡量灌区节水改造进展与效果的重要指标。针对灌溉用水效率评价中存在的单一方法评价结果不一致的难点问题，该文以12个灌区用水水平与用水效率实地调查分析为基础，首先采用突变理论评价方法、熵值法和层次分析法进行灌溉用水效率评价，再以Spearman等级相关系数作为检验标准，利用平均值法、Board法、Copeland法、模糊Borda法4种组合评价方法对单一评价结果进行组合，反复迭代，得到各灌区农业用水效率综合评价排序。最后，根据影响灌区排序的主要指标将灌区分为3类，指出了影响各灌区灌溉用水效率的主要因素及其改进措施，对灌区节水改造与农业用水效率管理具有参考意义。
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