The　supported　palladium　catalysts　perform　well　in　the　oxidative　removal　of　hazardous　aromatic　hydrocarbons.　However,　water　vapor　can　seriously　deactivate　the　catalysts　especially　in　the　low-temperature　regime.　Hence,　improving　moisture　resistance　of　the　Pd-based　catalysts　is　full　of　challenge　in　the　removal　of　aromatics.　Herein,　we　report　a　new　type　of　Pd@NC/BN　catalysts　featured　with　nitrogen-doped　carbon　layers　modified　Pd　supported　on　hexagonal　boron　nitride　(h-BN),　and　the　relationship　between　structure　and　water　resistance　of　the　catalysts.　The　results　show　that　in　the　presence　of　10　vol%　H2O　in　the　feedstock,　the　Pd@NC/BN　catalyst　could　effectively　oxidize　o-xylene　(with　an　almost　87%　removal　efficiency),　whereas　o-xylene　conversion　declined　from　69%　to　20%　over　the　conventional　Pd/Al2O3　at　a　reaction　temperature　of　210　degrees　C　and　a　space　velocity　of　40,000　mL/(g　h).　The　adsorption　of　H2O　was　significantly　inhibited　on　the　nitrogen-doped　carbon　layers　due　to　the　hydrophobic　nature.　Meanwhile,　the　oxygen　species　active　for　o-xylene　oxidation　were　not　only　from　the　adsorbed　gas-phase　oxygen　but　also　from　the　new　active　oxygen　(*OOH　and　*OH)　species　that　were　generated　via　the　interaction　of　O-2　and　H2O　in　the　presence　of　water　in　the　feedstock.　It　is　concluded　that　the　reactive　oxygen　species　that　accelerated　the　activation　and　cleavage　of　C-H　bonds　significantly　facilitated　the　conversion　of　key　intermediate　species　(from　benzaldehyde　to　benzoic　acid),　thus　playing　a　decisive　role　in　o-xylene　oxidation.　The　present　work　provides　a　direction　for　developing　the　superior　water　resistance　catalysts　with　hydrophobic　nature　and　good　water　activation　ability　in　the　oxidative　removal　of　volatile　organic　compounds.