Wind power is to help human reduce the carbon dioxide emissions, and reduce dependence on fossil fuels. If we want to make better use of wind power, wind power unit is the foundation. Generally, Large towering wind turbines are towering, its key parts breakdown maintenance like wind turbine maintenance is devilishly hard to realize. Air leakage of the generator, and damaged the growth of box can make the work efficiency of wind turbines fall even cannot work normally. So how to install and repair the wind power generation device?