Wireless　power　transfer　(WPT)　technology　are　hot　topic　in　current　researches　in　SMPS.　This　paper　focuses　on　the　structure　of　magnetic　coupling　system,　which　regarded　as　the　most　significant　part　in　WPT　system.　A　new　magnetic　structure　with　good　position　robust　and　low　flux　leakage　to　nearby　space　was　proposed　comparing　to　the　traditional　spiral　structure.　The　simulation　results,　magnetic　evaluation　results　and　test　results　verified　the　proposed　magnetic　structure　is　more　suitable　for　the　cases　in　which　the　receive　devices　could　offset　horizontally.