The invention provides a method for analyzing wind power layout of a regional power grid based on quiescent voltage stability. The method comprises the steps of setting up a wind power access reactive characteristic model on a network model of the regional power grid; acquiring PV curves of wind power access substation buses in a normal operation mode and a N-1 operation mode; acquiring critical voltages of the wind power access substation buses according to the PV curves; acquiring normal voltages of the buses; respectively acquiring accessible wind power capacity in the normal operation mode and the N-1 operation mode, acquiring theoretical acceptance wind power capacity of the substation buses, acquiring an acceptance ability ratio of wind power in the regional power grid, and acquiring wind power layout of each bus in the regional power grid according to the acceptance ability ratio and wind power access total quantity of the regional power grid. A relative ratio of the access capacity of the substation to the access capacity of other substations is judged by means of limit wind power access capacity of the substation buses, and then the access capacity of the substations is allocated under the given planning capacity.