摘要:According to the existing water quality monitoring data from the monitoring sites in Jining city, the clusteringanalysis method of mathematical statistical analysis is employed to analyse and evaluate the water quality ofJining city. First of all, by using the statistical software SPSS, we aggregate and classify the monitoringsites; at the same time, the water quality objectives are aggregated and classified and the main water pollutionindicators are selected. Finally we made a preliminary assessment of water quality situation in Jining city.