Existing　bond-slip　constitutive　models　suffer　from　discontinuities　and　inaccuracies　due　to　the　regression　of　experimental　data.　These　deficiencies　compromise　the　safety　and　convergence　of　structures　that　require　consideration　of　the　bond-slip　relationship,　such　as　those　exposed　to　extreme　temperatures　(high　and　low　temperatures).　This　paper　concluded　the　bond　performance　formula　calculated　under　different　factors　including　rebar　diameter,　concrete　cover,　concrete　strength,　corrosion　levels,　and　high/low　temperatures　by　84　prismatic　pullout　test　specimens.　Laboratory　results　indicate　that　the　corrosion　damage　decreases　the　interfacial　circumferential　stress　and　bond　stress,　and　the　temperature　damage　the　ultimate　bond　stress,　bonded　stiffness,　and　energy　dissipation.　The　bond　strength　decreases　by　43.9　%　at　a　low　temperature　of　-80　degrees　C　and　72.0　%　at　a　high　temperature　of　800　degrees　C.　Interfacial　pressures　before　and　after　cracking　are　analyzed　based　on　thin-walled　cylinder　theory　and　temperature　damage,　and　the　restraining　effects　of　the　bonding　interface　are　also　functionalized.　The　crack　width　equation　at　the　bonding　interface　is　proposed　considering　the　tensile　softening　behavior　and　bonding　degradation　at　environmental　conditions.　Finally,　the　calculated　bond　strengths　are　compared　with　experimental　data,　and　the　proposed　bond-slip　constitutive　model　accuracy　is　verified　by　comparing　IAE　and　finite　element　simulation.　The　proposed　model　predicts　the　bond　properties　of　corroded　RC　structures　at　high　and　low　temperatures,　which　is　beneficial　to　the　safety　performance　evaluation　of　service　structures　in　extreme　environments.