An aeronautical static inverter based on distribution power conversion technology is analysed and researched. The inverter consists of two push-pull forward converters and one two-stage cascaded inverter. The structure is composed of some unified modules, which distribute the power to each module equally and avoid the use of high voltage power device. By the analysis of the inverter′s operation principle and control strategy, the structure can decrease the size and weight of output filter significantly, and achieve a good output characteristic with low switching frequency. A prototype of 1 kVA 400 Hz aeronautical static inverter is with the high efficiency of 91.3% and the light mass of 1.8 kg, and it is proved that the inverter has the merits of high power density, excellent output properties, and high reliability.