To Ensure The Safe Supply Of Drinking Water The Quality Should Be Monitored In Real Time For That Purpose New Approach IOT (Internet Of Things) Based Water Quality Monitoring Has Been Proposed. In This Project, We Present The Design Of IOT Based Water Quality Monitoring System That Monitor The Quality Of Water In Real Time. This System Consists Some Sensors Which Measure The Water Quality Parameter Such As PH,conductivity, Temperature. The Measured Values From The Sensors Are Processed By Microcontroller And This Processed Values Are Transmitted Remotely To The Core Controller That Is Micror Controller Using Zigbee Protocol.