Inductor-integrated　high-power　high-frequency　transformer　can　achieve　soft　switching　of　power　semiconductor　devices　and　reduce　switching　loss.　That　is　widely　used　at　high-voltage　and　high-power　applications　such　as　renewable　energy　grid-connected　systems.　The　method　of　dividing　a　single　air　gap　into　several　air　gaps　can　effectively　reduce　the　additional　loss　caused　by　the　air　gap.　However,　cutting　the　air　gap　in　amorphous　or　nanocrystalline　strips　commonly　used　at　large-capacity　high-frequency　applications　will　break　the　interlayer　insulation　and　increase　the　eddy　current　loss　at　the　core　incision.　Hence,　the　number　of　air　gaps　should　be　as　few　as　possible.　This　paper　introduces　that　three　quasi-distributed　air　gaps　can　be　arranged　at　three　regions　of　the　magnetic　core　according　to　the　certain　rule　to　effectively　decrease　winding　loss.　Finite　element　analyses　(FEA)　will　be　utilized　to　validate　that　the　proposed　method　is　better　than　that　of　the　six　quasi-distributed　air　gaps.　©　2019　IEEE.