The invention belongs to the technical field of concrete sleepers for metallurgical industrial and mining enterprises, and in particular relates to a small-radius curve concrete sleeper component comprising a small-radius curve sleeper, an upper strand steel rail and a lower strand steel rail which are arranged on the small-radius curve sleeper, and a guard rail which is arranged at the outer side of the lower strand steel rail. The small-radius curve concrete sleeper component is characterized in that two filler plate grooves with shoulders are formed in the top surface of the small-radius curve sleeper; an upper strand rail brace is arranged at the outer side of the upper strand steel rail; an upper strand filler plate is arranged at the bottom of the upper strand steel rail, and a buffer rubber mat is arranged at the bottom of the upper strand filler plate; a rail gauge adjusting block is arranged at the inner side of the upper strand steel rail; the guard rail arranged at the outer side of the lower strand steel rail is an adjustable guard rail; and a rail gauge adjusting block is arranged at the inner side of the lower strand steel rail. The small-radius curve concrete sleeper component provided by the invention adopts a concrete structure to ensure that the stability of a rail structure is stronger, the safety coefficient of locomotive running is greatly improved, meanwhile, wood materials are saved, the small-radius curve concrete sleeper component is safe and environment-friendly, and the production cost is reduced.