To investigate the bond performance of reinforcement and concrete components under high temperature, twenty-five central pull-out test specimens and other eight specimens for temperature field test were casted. The corresponding standard cube compressive specimens were also casted for concrete tensile splitting strength test under different temperatures. After exposed to 100 ℃, 200 ℃, 400 ℃, and 600 ℃, the tensile splitting strength of the cube specimens and the bond properties between rebar and concrete were tested immediately to simulated the concrete circumstance and reinforcing steel performance under high temperature. The strength of rebars which underwent temperature cycle loadings was tested after its cooling. The strength of rebar, tensile splitting strength of the cube specimens, and the bond performance between rebar and concrete under different temperatures were recorded. According to the temperature test results, a simplified test method of the bond strength between reinforcing bar and concrete under high temperature was proposed. The effect of high temperature environment on bond performance between rebar and concrete was analyzed from the perspective of the mechanical properties degradation of materials, and the influence of high temperature on bond stiffness was studied by the method of tangential bond stiffness. The experimental results show that the strength of rebar after high temperature shows little change below 400 ℃, the tensile splitting strength of concrete decreases linearly with temperatures and the variation trend of bond strength under high temperature is similar to the tensile strength of concrete. The results present two different relationships between bond stiffness and temperature by the slip of 0.015 mm.