An experimental study on the impact resistance of concrete filled steel tube (CFT) after exposure to high temperatures (100 ℃, 300 ℃, 500 ℃ and 700 ℃) under multiple impact loadings was carried out by using a Split Hopkinson pressure bar (SHPB). The strain and stress versus time relation curves of CFT specimens were measured to experimentally analyze the dynamic behaviors of CFT under multiple impact loadings. The test results have shown that CFT after exposure to high temperature experiences no remarkable strength deterioration and has excellent impact-resistance to multiple impact loadings. Concrete filled steel tube is excellently suitable to resist the possible progressive collapse of structures on fire and the double actions of high temperature exposure and blasting or impact loading caused by military attacks.