Grid integration is now the only application method of large-scale wind energy in the world. However， due to the fluctuation of wind speed resulting in significant fluctuations of wind power， wind power penetration limit is hard to reach beyond 10%. This paper introduces an original idea about the direct application of large-scale non-grid-connected wind power， i.e.， large scale wind power will not be connected into the power grid but directly applied to a series of the end-users adapting to the characteristic of wind power. The configuration of the non-grid-connected wind power system is optimized， and the utilization efficiency is improved significantly， and therefore the cost of wind power is decreased remarkably. It also addresses the problems to be solved and research directions for the next step.