The climate change and water scarcity are the most world environmental challenges. Producing fresh water from seawater needs a lot of energy that may be supported by fossil fuel power stations. However, a solution for the challenges is water desalination system that is integrated to the renewable energy. Moreover, there is much energy conversion in these systems that reduce the overall system efficiency. This article introduces a novel Desalination Wind Turbine, and such that it is described and analyzed by nonlinear simulation. In this system, the wind energy transmitted to the water pump by a hydraulic transmission line. The RO module is used for fresh water production. The long-term performance of the system, such as annual water production is calculated and the ability of the system to Maximum Power Point Tracking and the wind turbulence and wind sudden change is analyzed, which shows the system overshoot is less than 6%.