Abstract: In this experiment with steel fiber and polypropylene fiber, fiber EPS concrete was made, the mechanical properties of which were analyzed as well as EPS concrete, and anti-impacting properties of fiber EPS concrete were studied and characterized through varying the load rate. The research results show that the EPS concrete has good mechanical properties. When the water/cement ratio is 0.26 and the EPS volume rate is 40%, compressive strength and flexural strength of concrete after 28 days are respectively 22.03MPa and 4.50MPa. Low dosage of hybrid fibers can slightly improve compressive strength of fiber EPS concrete, but largely enhance the toughness of concrete. Compared with normal concrete, the ultimate compressive strength of fiber EPS concrete will be improved significantly with the load rate increased.