Abstract: In current control reconfiguration schemes, the reconfiguring process does not occur until faults are located accurately. This may cause the fault tolerance problem during the diagnosis process. We propose a multistage strategy in which the reconfiguring process starts once the faults are located in some suitable element sets, and carries forward through other stages along with the diagnosis process advancing. The strategy is transformed into a robust model-following problem, and a mixed H2/H∞ method is provided for that problem. The above strategy and design method were applied to some advanced aircraft, and the results showed their effectiveness.