The utility model relates to a bionic grass anti-scouring system with a composite cylindrical foundation. The utility model aims to provide the bionic grass anti-scouring system with the composite barrel-shaped foundation, which is simple in structure, lower in cost and easy to maintain. The technical scheme of the utility model is as follows: the nursing bed comprises a bed body, the utility model discloses a bionic grass anti-scouring system with a composite barrel-shaped foundation. The method is characterized in that the method is characterized by comprising the following steps; the devicecomprises a large-diameter thin-wall steel cylinder, a concrete base plate and a concrete cylinder, wherein the large-diameter thin-wall steel cylinder is vertically fixed on a seabed, the concrete base plate is fixed at the top end of the large-diameter thin-wall steel cylinder and is blocked by the concrete base plate, the concrete cylinder is fixed on the top surface of the concrete base plate, and a plurality of bionic grass mats woven by bionic grass are uniformly arranged on the periphery of the concrete base plate. The utility model is applicable to the technical field of civil engineering in wind power generation industry.