This paper describes the design of robot for cleaning rubbish floating on the water surface. Three important issues for designing the aquatic robots are: cost effective solution, robustness and durability. Because of the nature of the cleaning work, the aquatic-robot structure is designed such that it can afford high stability, great maneuverability and can easily collect all the waste flowing in between. A pontoon shaped hull works best for this case and fulfills all the hydrostatic, structural stability criteria. For the purpose of removal and collection of surface waste, a motor driven collecting-arm system has been designed for collecting the wastes and redeploying it into rectangular basket on the hull. This design provides a simple and effective waste removal and accommodates large amounts of waste within a small space. For the prototype, the hulls were made up of styrofoam which is covered by fiber and then coated with water proof and resin.  It supported together by aluminum. This light and tough structure supports the total weight of the system. The propulsion system based on a differential drive mechanism has been designed, which allows the robots to take a 360 turn on the spot and provides high thrust. Electronic circuit and motors have been placing inside the hull, in order to protect them from water seeping inside its casing. Robot is manually controlled by remote control and Xbee Pro wireless modul. The testing of the robot prototype proved to be effective in waste collecting and removal. The maximum trash load that robot can bear is up 14 kg.