Since there is a very close relationship between drinking water and physiological functioning, the worldwide counties continually devote themselves to improving the quality of drinking water. Generally, water quality testing is the basic and frontline work for the water resource management. Therefore, it would be a key and import issue how to keep a valid test. The object of the study is to construct a mathematical model of water quality testing for developing the intelligent system of the quality control. In this work, we have completed several tasks, including (i) collected and analyzed huge amounts of testing samples systematically, (ii) analyzed the water quality parameters and constructed the rational model, and (iii) developed the intelligent technologies of the quality control.