With　high　power　density　and　high-frequency　power　electronics　technologies,　parasitic　capacitances　of　inductors　and　transformers　have　been　widely　discussed,　in　which　parasitic　capacitance　may　lead　to　electromagnetic　interference　(EMI)　and　efficiency　performance　degradation.　Therefore,　it　is　significant　to　analyze　and　model　the　parasitic　capacitance　of　the　inductors　and　transformers.　This　paper　proposes　a　new　parasitic　capacitance　calculated　model　of　multilayer　windings　inductors　and　transformers.　Based　on　the　electromagnetic　field　theory,　it　can　fully　consider　the　edge　effect　of　multilayer　inductor　windings,　including　the　edge　effect　between　adjacent　and　non-adjacent　layers.　Finally,　the　accuracy　of　the　model　is　validated　by　simulation　and　experiment.　Compared　with　the　traditional　parasitic　capacitance　calculated　method,　the　proposed　model　can　calculate　the　parasitic　capacitance　more　accurately,　and　the　maximum　error　between　calculations　and　simulations　is　less　than　8%.