Optimization method and device for priority face recognition database

The invention discloses an optimization method and device for a priority face recognition database. The method comprises the steps that a background server judges whether facial feature parameters which do not meet predetermined priority recognition conditions exist in the pre-created priority face recognition database or not; when it is judged that the facial feature parameters which do not meetthe priority recognition condition exist in the pre-created priority face recognition database, the background server removes the facial feature parameters which do not meet the priority recognition condition from the pre-created priority face recognition database. Therefore, by implementing the method, the data volume of the priority face recognition database is reduced by removing the face feature parameters which do not meet the pre-determined priority recognition condition from the pre-created priority face recognition database, and the face recognition efficiency of passengers can be improved, so the face-scannin