The invention discloses a visualization method for realizing the quiescent voltage stability domain of an electric power system, and relates to the technical field of electric power system voltage stabilization. The visualization method comprises the following steps: calculating quiescent voltage steady load margins corresponding to all preconceived failure conditions online in an ascending sort order, using a load margin of the electric power system corresponding to a preconceived failure condition as a point on a load horizontal coordinate axis, using the actual load value of the electric power as the other point on the load horizontal coordinate axis, then using the load margins as centers, forming a quiescent voltage steady domain on the left side of the center, forming a quiescent voltage unsteady domain on the right side of the center, finally sorting all the preconceived failure conditions according to the amplitudes of the voltage steady load margins, and listing on a map so that a visualization quiescent voltage steady domain capable of obtaining preconceived failures. According to the visualization method, the visualization for the quiescent voltage steady domain of the electric power system can be realized, and the quiescent voltage steady domain corresponding to a different preconceived failure set can also be obtained.