The invention discloses a vibration test system of an electronic transformer. The vibration test system is composed of an electronic transformer, a combination unit, an industrial personal computer, acircuit breaker, a contact monitoring circuit, a data acquisition card and a photoelectric conversion circuit. The electronic transformer and the combination unit are connected; and the combination unit is connected with the industrial personal computer. The circuit breaker, the contact monitoring circuit, the data acquisition card and the photoelectric conversion circuit are arranged. The contact monitoring circuit is connected with the circuit breaker and the data acquisition card; the data acquisition card is connected with the industrial personal computer; and one end of the photoelectricconversion circuit is connected with the combination unit and the other end is connected with the industrial personal computer. The industrial personal computer tests signals from the data acquisition card, the electronic transformer, and the combination unit by using testing software. The vibration test system has the following beneficial effects: the vibration operation situation, caused by thesevere switching operation, of the electronic transformer at the operation field and the carried vibration level of the electronic transformer are simulated; and the performances of the electronic transformer can be checked effectively on the vibration condition.