In order to investigate the low velocity impact performance of fiber metal laminates (FMLs) and the effect of exposure temperature on the impact performance, a series of low velocity impact tests on the FMLs based on 2A12 aluminum alloy and S2-glass/epoxy composite prepregs were conducted by drop weight impact tests. Some FMLs were then cooled at -25℃ and 0℃ for 1h and impacted with high impact energy. The experimental results showed that when impacted at low impact velocity for the FMLs without cooling, denting, circular cracking even perforation occurred in the front aluminum layer in the FMLs, and bulging, linear cracking even petaling occurred in the rear aluminum layer. The peak force increased with increasing impact energy until the impact energy reached the perforation energy of the FMLs, then the peak impact force almost constant after perforation. The peak displacement increased with increasing impact energy while the energy restitution coefficient decreased with increasing impact energy. It should be noting that low velocity impact performance of the FMLs after exposure to -25℃ and 0℃ for 1h was improved in contract to that without cooling but the bonding performance at the aluminum-composite interface was reduced. The peak impact force and damage area of debonding at the aluminum-composite interface increased with decreasing exposure temperature while the peak displacement decreased with decreasing exposure temperature.