Abstract: The current method for power grid transient stability analysis does not use the correlation coefficient to solve the edge distribution of different wind farms,resulting in large errors in the quantitative analysis results of the transient and steady state. To this end,a transient and steady-state quantitative analysis method of high permeability wind power grid considering line congestion is proposed in this paper. The transient and steady-state energy function of high permeability wind power grid considering line congestion is constructed,and the influence of wind power output change on power angle characteristics of generator set is analyzed,and the corresponding judgment basis of transient and steady-state of wind power grid is obtained. At the same time,the edge distributions of different wind farms are solved through the correlation coefficient, and the inverse function of Weibull distribution is introduced to obtain the wind speed sequence to construct the transient and steady-state risk index of wind power grid,which is used for the quantitative analysis of the transient and steady-state of wind power grid. The effectiveness and operability of the proposed method are comprehensively verified by relevant tests.