The　temperature　field　distribution　has　a　significant　influence　on　structural　performance,　thermal　deformation,　and　thermal　error　compensation.　To　improve　the　prediction　accuracy　of　the　temperature　distribution　of　the　spindle　system,　a　comprehensive　model　considering　the　contact　thermal　resistance　(TCR)　of　the　interfaces　was　established　to　analyze　the　thermal　performance　of　the　high-speed　spindle　system　in　the　present　work.　An　elastoplastic　contact　model　was　used　to　calculate　the　contacting　areas　and　loads　of　interfaces,　which　were　employed　to　establish　the　contact　thermal　resistance　model　of　the　primary　interfaces　of　the　spindle,　such　as　bearing　rings　and　tool　holders.　Based　on　the　TCR　parameters,　a　finite　element　analysis　(FEA)　model　was　proposed　to　analyze　the　temperature　distribution　of　the　spindle　system.　And　a　temperature　test　experiment　was　set　up　to　verify　the　accuracy　of　the　FEA　model.　The　results　show　that　the　relative　errors　of　representative　test　points　were　all　less　than　5%,　which　means　the　established　model　can　appropriately　reflect　the　temperature　field　distribution　of　the　spindle.