Abstract: A strategy and principle of the optimization of pass schedule named equal reduction were first proposed in order to reduce the time of Flying Gauge Control (FGC) and improve the stability of FGC process. An actual example was given, and the changes in rolling force and gauge during FGC were simulated. The results showed that the stability of FGC process can be improved and the influence of the FGC stand on the other upriver stands can be reduced by the proposed pass-schedule strategy.