The invention provides a PC component production line. The PC component production line comprises a clearing work station, a spraying work station, a scribing work station, a reinforcing steel bar and embedded part mounting work station, a quality inspection work station, a side die mounting work station, a laying work station, a die transverse movement work station, a leveling work station, a pre-curing work station, a smoothing work station, a curing kiln, a stacking work station, a die removing work station, a lifting work station and the like, which are connected by a conveying rail. A die component moves with the conveying rail in the order of the work stations and is processed by the procedures of all the work stations. Various models and sizes of PC components can be produced and manufactured. The layout of the production line is reasonable. Various PC components can be cyclically produced on one production line, so that various sizes of fixing dies do not need to be manufactured. The waste of material resources is greatly reduced, the production cost is reduced, and the production efficiency is improved.