In regard to the enhancement of resilience in metro systems during disaster events, one of the key measures is the protection of metro stations through the deployment of emergency resources. This involves mobilizing resources from nearby warehouses to the affected stations. A typical scenario is the transportation of flood control resources, such as sandbags and water pumps, from resource warehouses to flooded stations during a storm flood. This allows the protected stations to continue operating during the flood, thereby fulfilling the essential travel needs of citizens. If total resources are limited, those stations that are unable to receive emergency supplies will have to be closed [1]. Therefore, during a flood, an optimal scheme for transporting resources from warehouses to stations will determine which stations can be protected and thus continue operating, thereby determining the service performance of the metro network.