Monitoring　trace　oxygenated　polycyclic　aromatic　hydrocarbons　(O-PAHs)　in　tea　infusions　is　crucial,　as　long-term　consumption　of　O-PAHs-contaminated　tea　can　harm　health.　In　this　work,　covalent　organic　framework　(COF)　TpBD-(OH)2　coating　was　fabricated　for　solid-phase　microextraction　(SPME)　of　O-PAHs.　The　coating　contains　abundant　benzene　rings　and　hydrogen　bonding　sites　(oxygen　and　nitrogen　groups).　Density　functional　theory　calculations,　electrostatic　potential　distribution　and　X-ray　photoelectron　spectroscopy　analysis　indicated　the　COF　efficiently　adsorbs　O-PAHs　via　van　der　Waals　force,　hydrogen　bonding,　electrostatic　force,　size　matching,　and　π-π　interaction.　Under　the　best　SPME　conditions,　a　method　for　detecting　O-PAHs　in　tea　infusions　was　developed　using　gas　chromatography-tandem　mass　spectrometry　(GC–MS/MS).　The　method　possessed　low　limit　of　detection　(0.5–1.0　ng　L−1),　wide　linearity　(2.0–1000.0　ng　L−1)　and　satisfactory　recoveries　(82.5　%–117.5　%).　Furthermore,　the　method　was　used　to　study　the　impacts　of　different　roasting　methods　on　O-PAHs　contamination,　and　results　showed　carbon　roasting　posed　a　higher　risk.　©　2025　Elsevier　Ltd