Abstract: Based on fast switching power MOSFET, by using a high repetitive frequency integrated drive chip and a high efficiency magnetic coupling structure, the compact high power repetitive frequency generator is designed. This generator is constructed by four stages LTD and tested for a single shot and repetitive operation at 2 MHz. Near-rectangle waveforms are obtained on the resistance of 200 , with an output voltage of 2.27 kV, a rise time of 6.8 ns, a pulse width of 91 ns, and a fall time of 20 ns. The overall system voltage efficiency is up to 95%. The generator can be used for research of repetitive frequency pulse effect because of its compactness, stableness and modularity.