This article is the windward electricity supplementary actuation desalination control system conducts the research, With the wind directly driven desalination high pressure pump, Complemented by electricity network as a supplementary, When the wind is great, Also may the back coupling electrical network, This system according to the amount of water desalination successively calculated, design, Select vertical-axis wind turbine impeller, the transmission system, desalination system and control system, final Assembly and test.