ABSTRACT 1. Introcuction 2. Background of Water Treatment Control Systems 3. Water Treatment Plant Control Process and Autormation 3.1. Overview of water treatment plant control process 3.2. Fiter Basin Automation 4. Development and Design of Intelligent Mode with Higher Performance 4.1. Intellihgent LonWorks node 4.2. Example implementation of intelligent master controller 4.3. Procedure of programming 4.4. Sequence of logic procedure 5. Field Test and Operation 6. Conclusions and Discussions Acknowledgements References