Thermosetting　phenolic　resins　were　synthesized　by　suspension　polymerization　(SPPR).　The　structure　and　thermal　properties　of　the　resin　were　analyzed　by　infra-redspectrum,　thermo　mass　(gravimetric)　analysis.　The　brake　composites　based　on　SPPR　for　automobile　were　prepared　by　compression　molding.　The　effect　of　operating　temperature　on　the　dry　sliding　friction　and　wear　properties　of　brake　composites　was　investigated.　The　sliding　experiments　were　carried　out　on　a　model　JF150D-II　pin-on-disc　tribometer　at　selected　temperatures　in　the　range　of　100°C~350°C.　The　results　show　that　thermal　decomposition　temperature　of　the　thermosetting　phenolic　resins　is　396°C　and　losing　mass　is　12.7%　at　400°C　with　excellent　thermal　performance.　When　the　SPPR-based　brake　composites　was　fractionized　coupling　with　HT250　cast　iron　flat　at　a　temperature　range　from　100°C　to　350°C,　the　maximum　fluctuation　of　friction　coefficient　is　0.07　with　the　average　of　0.41,　and　the　ratio　of　the　friction　coefficient　at　350°C　versus　the　maximal　friction　coefficient　(μ350/μmax)　is　1.Test　result　indicates　that　the　brake　composite　shows　excellent　friction　stability　at　different　temperatures,　low　wear　rate　and　good　thermal　fade　resistance.