最小二乘法是一种常用的统计方法,可以运用于水利工程建设中。但是这种方法也存在着一定的不足,主要表现为,当样本点少时,通常统计的结果存在着一定的偏差。并且,在现实的水利工程中,往往会面临着样本点过少的问题。针对这些问题,采用偏最小二乘法就可以解决。文章采取偏最小二乘法建模以解决水利工程建设和监测中的问题,将定量分析与定性分析相结合,通过多种分析方法来确保模型的精度。 Least square method is a commonly used statistical method, which can be used in water conservancy project construction. However, this method also has some shortcomings, mainly as follows: when there are few samples, there are some discrepancies in the statistical results. And, in the actual water conservancy project, often faced with the problem of too few samples. For these problems, using partial least squares method can be solved. The article adopts PLS modeling to solve the problems in water conservancy construction and monitoring, combines quantitative analysis with qualitative analysis, and ensures the accuracy of the model through various analysis methods.