The concept of energy utilization is by utilizing the phenomenon of vortex vibration that occurs in a cylinder due to the flow of sea water currents. Although this phenomenon can lead to damage to the structure of the building and always avoided even attempted to be muffled as small as possible, but this vortex energy can be utilized to produce electrical energy that is environmentally friendly. This paper contains about the development of virtual prototype of linear generator on marine power plan with pneumatic implementation for prime mover. The development of virtual prototype of linear generator is done by using solid work. Then, control system of linear generator movement is based on pneumatic system. The virtual model simulate it in studio automation software then the result of the simulation is created graph of frequency so that can be analysed the pressure required to drive the actuator so that the linear generator produces 50 Hz frequency.