This article studies the pulse train(PT) control strategy based on diff erential boost inverter. Diff erential Boost inverter has the f unction of achieving single stage boost and inverter, but due to its nonlinear characteristics, it is difficult to model and design simple and accurate controllers using traditional linear control strategies. PT control is based on a voltage and current dual loop, which adjusts the output voltage by outputting appropriate high-power control pulse PH and low-power control pulse PL, achieving f ast and accurate control of nonlinear inverters.