Recent　development　in　magnetic　nanostructures　has　promoted　flexible　electronics　into　the　application　of　integrated　devices.　However,　the　magnetic　properties　of　flexible　devices　strongly　depend　on　the　bending　states.　In　order　to　realize　the　design　of　new　flexible　devices　driven　by　an　external　field,　the　first　step　is　to　make　the　magnetic　properties　insensitive　to　the　bending.　Herein,　a　series　of　LiFe5O8　nanopillar　arrays　were　fabricated,　whose　microwave　magnetic　properties　can　be　modulated　by　tuning　the　nanostructure.　This　work　demonstrates　that　nanostructure　engineering　is　useful　to　control　the　bending　sensitivity　of　microwave　magnetism　and　further　design　stable　flexible　devices.