The invention provides a transient-state voltage testing method based on transfer process simulation of an electronic voltage transformer to solve the problem that the transient-state process of voltage of capacitive voltage division type electronic voltage transformers in existing electric transmission and distribution circuits and transformer substations is difficult to simulate, the switch turning-on process cannot reflect its real transient-state phase step process and testing of direct one-time transient-state process is also unpractical. The transient-state voltage testing method comprises the steps that a systematic simulation model is established through simulation software, and simulated one-time voltage data is sent to a test mainframe; a simulated physical model of the electronic voltage transformer to be tested is established, and a capacitance value of the simulated physical model and the simulated one-time voltage data are reduced; the test mainframe analyzes error valuesof software integration results and integration element results of the simulated physical model. The transient-state voltage testing method has good universality and can be compatible with two modesof hardware integration and software integration of the electronic voltage transformer.