The invention relates to the technical field of the digital simulation of an electric system, in particular to a method for building a Xinjiang region power grid simulation model on the basis of a DIgSILENT (DIgital Simulation and Electrical NeTwork). The method is executed according to the following steps: determining Xinjiang power grid parameters; putting a transformer model and a circuit model into library in DIgSILENT data management, and putting a double-fed fan model, a fire power generator model and a var generator model into the template of the library; according to Xinjiang power grid operation data, establishing a main grid model under the data working page of the DIgSILENT; and building the power grid, setting parameters, and carrying out load flow calculation. The invention has the advantages of being reasonable and compact in structure and convenient in use and provides the method for building the power grid model which conforms to Xinjiang power grid practicality on the basis of the DIgSILENT. The method can accurately and quickly analyze the static and transient stability of the Xinjiang power grid, can calculate and simulate the static stable curve of the wind power plant and the photovoltaic power station of each place of Xinjiang and transient simulation when the power grid is subjected to N-1 and N-2 faults, and provides a basis for analyzing the stability of the Xinjiang power grid.