For solving problems of the consecutive large-scale wind turbine tripping in 2011 and serious wind power curtailment since 2012, a variety of phenomena and problems exposed in the construction and operation process of Jiuquan wind base are analyzed, with consideration of the general development law of large-scale projects, some overall characteristics of large-scale wind power base are put forward. The large wind power base development is an engineering activity and the engineering has its law and its law must be observed. Large-scale wind power, which is the complicated application of technologies and integration of technology aggregation, must be implemented according to engineering science. It is a huge project to be completed through construction, the efforts of the construction must be focused equally on cost, quality and efficiency. Its planning, construction, operation and energy consumption should be coordinated by the state governing department in charge of national energy. It must harmonize with the environment and ecology to ensure the sustainable development of large-scale wind energy.