Abstract: A control system based on industrial Ethernet communication technology and Windows platform is presented for remotely operated vehicle(ROV).The control system is applied to a newly developped remotely operated vehicle,and it displays obvious advantages over the traditional control systems in communication ability,video transmission,control performance,hardware expansibility,data storage and display,etc.Experiment is made in water pool with the presented control system to validate the good motion functions and performances of the control system and the whole ROV.