The large quantity of hazardous waste yielded in Chongqing has been threatening ecological environment and water resource.It is very important to manage hazardous waste effectively.This paper describes the developing of Management Information System(MIS) of the hazardous waste in Chongqing based on the GIS.Integrating hazardous waste with computer and Geographic Information System(GIS),it can provide the reliable,scientific and convenient management and decision-making support of hazardous waste in Chongqin...