Skirt board structure of high-speed train

The utility model provides a skirt board structure of a high-speed train, which belongs to the technical field of high-speed trains and comprises a skirt board body, reinforcing ribs, fixing rings andfasteners, the skirt board body is a composite material part made of epoxy resin and carbon fibers, and a plurality of through holes are formed in the skirt board body. The number of the reinforcingribs is multiple, each reinforcing rib is composed of a U-shaped plate and two wing plates arranged at the two ends of the U-shaped plate respectively, the wing plates are connected with the apron board body, and a cavity defined by the U-shaped plate and the apron board body is filled with foam; the fixing ring is arranged in the through hole, one end of the fixing ring is in lap joint with the apron board body, the other end of the fixing ring penetrates through the through hole and is fixed, a through hole is formed in the fixing ring and used for allowing the connecting bolt to penetrate through, and the apron boar