As a kind of green plant fiber,sisal fiber has many advantages such as low cost,high toughness and elastic modulus,good tensile and corrosion resistance,etc.,and the inclusion of sisal fiber in concrete can improve its splitting tensile strength and elastic modulus to a certain extent,thereby improving the durability of concrete structure and prolonging the service life of concrete.Alkali-resistant glass fiber has the characteristics of high tensile strength,good fluidity,and good adhesion to concrete slurry.The incorporation of this fiber has significantly improved the flexural and tensile strength of concrete,and has been successfully applied in tunnel engineering,and has achieved relatively successful results.The double-blended fiber composed of these two fibers can not only retain the advantages of both,but also strengthen its mechanical properties.This paper mainly discusses the characteristics of the hybrid fiber-reinforced concrete composed of the two mixtures and its effect on the improvement of concrete mechanical properties.