A　circuit　topology,　master-slave　power　distribution　and　instantaneous　voltage　and　current　feedback　phase-shifted　control　strategy　of　the　full-bridge　Boost　mode　multiple-input　DC-DC　converter　were　proposed.　Circuit　topology,　control　strategy,　characteristic　of　steady　principle,　design　criteria　for　the　key　circuit　parameters　were　fully　investigated.　The　full-bridge　Boost　mode　multiple-input　DC-DC　converter　is　equivalent　to　the　output　paralleling　of　multiple　full-bridge　Boost　mode　single-input　DC-DC　converters　by　add-up　of　magnetic　flux　in　the　high　frequency　transformer.　The　meaning　of　the　master-slave　power　distribution　strategy　is　that　n?1　input　sources　supply　constant　power,　whereas　1　input　source　supplies　residual　power　which　the　load　requires.　The　theoretical　analysis　and　simulation　results　show　that　the　converter　has　the　advantages　such　as　simple　topology,　multiple　input　sources　supplying　power　simultaneously　or　individually,　high　power　density,　regulated　output　voltage　etc,　and　lay　the　key　technical　foundation　on　the　joint　supply　of　multiple　renewable　energy　sources　such　as　solar　energy,　wind　energy,　and　hydrogen　energy　etc.　The　correctness　and　feasibility　of　the　proposed　circuit　topology　and　control　strategy　are　fully　verified　by　the　principle　test.　©　2010　Chin.　Soc.　for　Elec.　Eng.