The fatigue failure experimental study on the steel fiber with different content was carried out by using the TAW-2000 Multi-function material experiments machine.The results showed that the tired extreme limit anti-presses strength increased linearly along with the content of steel-fiber.The ability of resist fatigue increased along with the content of steel-fiber.The rising segment of the curve is more steep and the downing slower along with the time.The strength and temper of steel-fiber reinforced concrete be enhanced.