Abstract: The water polluters of Jinan were surveyed and analyzed in four aspects, namely, pollution discharge, wastewater composition, pollution generation links and pollutant types. An evaluation system of the multilevel hierarchical structure was set up, based on key elements of water polluters. 22 representative corporations were chosen by fuzzy evaluation method based on analytic hierarchy process (AHP). In addition, the intensified continuous and constant_proportion monitoring was performed, and the relationship between concentration and time, and the relationship between discharge and time, and the relationship between pollution load and time studied. Four pollution discharge rules of water polluters, including concentration dominant type, discharge dominant type, mix type and domestic sewage type, were found. This should provide technical support for double-tracks management of controlling both the concentration and total quantity, and for implementation of monitoring of total pollutant quantity.