Steel stacking prevention rolled piece production line and steel stacking prevention method

The embodiment of the invention provides a steel stacking prevention rolled piece production line and a steel stacking prevention method, and relates to the technical field of special rolling factories. The steel stacking prevention rolled piece production line comprises a processor, a finishing mill group, a scanner assembly and a reducing and sizing mill, the scanner assembly is installed between the finishing mill group and the reducing and sizing mill and used for scanning the vibration frequency of a rolled piece in real time, and the processor is connected with the scanner assembly and used for processing the rolled piece according to the vibration frequency. Whether the tension value of the rolled piece tends to cause an over-stacking state or not is judged, when the vibration frequency or the tension value exceeds a standard value, the rotating speed of a conveying motor of a finishing mill group is automatically adjusted, an operator is prompted, and the situation that the tension at the channel is o