Concrete sleepers are concrete products used as railway sleepers. A concrete sleeper product made by mixing cement, sand, stone, water, and additives in a certain proportion to form a mixture and injecting it into a composite model containing steel wires or steel bars, sleeper accessories, and using vibration forming or loading vibration forming, steam curing, relaxing steel wires or steel bars, cutting sleeper ends, etc. It has the advantages of saving wood, long service life, good track laying quality, low maintenance workload, and low cost. It is significantly better than wood in high-speed, heavy-duty, seamless and other railway applications. Divided into integral, combination, and half pillow according to structure; Divided into reinforced concrete sleepers and prestressed reinforced concrete sleepers according to the reinforcement method; According to the method of prestressing, it can be divided into pre tensioning method, post tensioning method, and continuous reinforcement method; Concrete sleepers are divided into 1435mm standard gauge and 600, 762, and 1000mm narrow gauge according to track gauge.