Thin　interbeds　analysis　plays　an　important　role　in　reservoir　prediction　and　seismic　attribute　analysis.　However,　the　seismic　resolution　is　much　lower　than　the　thin　interbeds＇　thickness.　Therefore,　it　is　difficult　to　analyze　the　thin　interbeds＇　seismic　response　by　time　analysis　or　frequency　analysis　alone.　Time-frequency　analysis　is　a　powerful　technique　for　analyzing　and　characterizing　non-stationary　signals.　It　can　reflect　the　variation　trend　of　frequency　with　time,　thus　time-frequency　tool　has　great　potential　to　analyze　thin　interbeds.　Restricted　by　the　uncertainty　principle,　the　traditional　time-frequency　methods　have　extremely　limited　time-frequency　resolution.　Compared　with　common　synchrosqueezing　transform　methods,　the　high-order　synchrosqueezing　transform　provides　a　highly　concentrated　time-frequency　representation　for　the　time-varying　signal.　In　this　abstract,　we　apply　a　high-order　synchrosqueezing　short-time　Fourier　transform　(STFT)　to　analyze　thin　interbeds　in　seismic　dataset.　Both　synthetic　data　example　and　real　seismic　data　example　show　that　high-order　synchrosqueezing　STFT　can　precisely　describe　the　time-frequency　distribution　and　clearly　reflect　the　thickness　variation　rules.　©　2021　Society　of　Exploration　Geophysicists　First　International　Meeting　for　Applied　Geoscience　&　Energy