The invention provides an electronic ballast of a xenon lamp, which is suitable for the technical field of design of the electronic ballast. The electronic ballast comprises a rectification and filtering unit, a power factor correction unit and an inversion unit, wherein the power factor correction unit is connected with the rectification and filtering unit; and the inversion unit is connected between the power factor correction unit and the xenon lamp. The electronic ballast further comprises a pulse integrated control unit, wherein the pulse integrated control unit controls the inversion unit to invert the direct current processed and output by the power factor correction unit into alternating current needed by the light emitting of the xenon lamp according to an electric signal fed back by a power supply passage of the xenon lamp; and the pulse integrated control unit is connected with the inversion unit and consists of a switching power supply chip and a peripheral circuit of the switching power supply chip. Because the switching power supply chip is used as a processing core of the pulse integrated control unit, the circuit structure of the electronic ballast is simplified and the cost for the electronic ballast is reduced.