探讨了采用径向基函数网络模型进行参考作物腾发量预测方法的可行性，设计多组数字实验处理研究了输入因子间相关性对网络模型预测准确性的影响，预测结果与Ｐｅｎｍａｎ－Ｍｏｎｔｉｅｔｈ方法计算结果比较表明，所确定的模型与改进的Ｐｅｎｍａｎ公式计算值有很高的一致性，具有一定精度。 The feasibility of the reference crop evapotranspiration prediction using the RBF network model was discussed. The effects of the correlation between the input factors on the prediction accuracy of the network model were also studied. The results were in good agreement with the Penman-Montieth method The comparison of the calculated results shows that the calculated model has a high degree of consistency with the calculated Penman formula and has some accuracy.