Abstract: Taking the aluminum alloy-carbon fiber/bismaleimide (BMI) resin composite multi-bolt double-lap structure as the research object, combined with digital image correlation (DIC) technology, quasi-static tensile tests under different temperature environments (−100℃, 25℃, 150℃) were carried out. The elastic-plastic model of metal and the progressive damage model of composite were used for numerical simulation. A UMAT subroutine considering the influence of temperature was developed to predict the damage of composite materials. The influence of temperature on load-bearing capacity, failure mode, damage evolution and bolt-load distribution of metal-composite hybrid multi-bolt joint structure was studied. The results show that the maximum load of the structure in the environment of 150℃ and −100℃ is reduced by 4.46% and 2.06% compared with the room temperature environment of 25℃, respectively. The failure modes of three temperature environments are all tensile fracture of the hole edge of the composite. The delamination and extrusion phenomenon of the hole edge are more serious at the high temperature, but the fiber and the matrix are tightly bonded and the extrusion and delamination of the hole edge are weaker in the cryogenic temperature environment. The unevenness of the multi-bolt hole edge damage is weakened at 150℃ and enhanced at −100℃, compared with at the room temperature. Due to the difference in thermal expansion between metal and composite, the bolt load distribution of the three bolts at high and cryogenic temperatures is different.