According to the ACI 4403R 04, the tests consisting of 60FRP connectors in the simulated concrete environment at 40℃ and 60℃ for 365, 1800, 3650, 9200, 18300d, were conducted to evaluate the tensile behavior of FRP connectors in terms of corrosion time. The morphology of the FRP connectorssurface was surveyed under scanning electron microscopy（SEM）, and it indicated that the bonds between fibers and resin of FRP connectors in the corrosion region became loose, and with increasing corrosion time and temperature the interfacial debonding between fiber and resin of FRP connectors became more significant. The results reveal that after being exposed to simulated concrete environment for 18300d at 40℃ and 60℃, tensile strength of FRP connectors decreases by 3291% and 3885%, respectively. Finally, based on the Arrhenius equation, strength prediction model of FRP connectors under simulated concrete environment is proposed.