Unlike man's vast knowledge of the land, atmosphere, and solar system, humanity knows relatively little about the oceans, especially deep below the surface. With global climate change a growing concern, understanding the dynamics of the oceans is imperative. Sensor networks, similar to underwater weather stations, must be deployed globally to gather the data needed to support ocean research. Our company is proudly presenting our R.O.V. that was designed specially to explore underwater world not just for find its treasures but also for save and protect its environment. And we develop shark ROV to build "shark series II" This report illustrates the technical aspects of the R.O.V. developed by shark team. Our vehicle is not just a remotely operated submarine it's also a research semi- autonomous vehicle. it consists of eight powerful bilge pumps that can provide motion in four directions with remotely joystick for controlling.Our vehicle will be able to complete any specified missions required by the customer. "Shark-II" is a result of last year work "shark-I" with a developed techniques and experimental back ground.