Abstract: Bonding interface is the weak link of carbon fiber reinforced polymer (CFRP) reinforced steel structure, which is significantly affected by adhesive and temperature. In order to investigate the effect of temperature on the interfacial properties of CFRP-steel bonded by a self-developed high-performance adhesive, 28 CFRP-steel double lap specimens were prepared. The tensile shear tests of self-developed high-performance adhesive G3 and typical commercial adhesive Sika30 were carried out at 7 ambient temperatures (−20℃, −5℃, 10℃, 25℃, 40℃, 55℃ and 70℃). The failure mode, ultimate bearing capacity, load-displacement curve, interface shear stress and bond-slip curve of the specimens were analyzed. The results show that the strength of the adhesive decreases and the toughness increases with the increase of temperature. When the temperature is close to or exceeds the glass transition temperature of the adhesive, the colloidal performance decreases sharply, and the failure mode of the lap joint specimen changes from CFRP layer separation failure to steel-adhesive interface failure, and the interface performance decreases significantly. The low temperature performance of G3 specimen is comparable to that of Sika30 specimen, but the high temperature performance of G3 adhesive specimen is significantly better than that of Sika30 adhesive specimen. The interface performance of the specimen at low temperature is significantly lower than that at 25℃. The adverse effects of brittleness of the reinforcement system at low temperature should be considered in the steel structure strengthened with adhesive CFRP.