In　this　paper,　we　design　a　frequency　synchronization　method　for　multiuser　orthogonal　frequency　division　multiplexing　(OFDM)　uplink　with　a　large-scale　partly　calibrated　uniform　linear　array　(ULA)　at　base　station　(BS).　A　beamforming　parameter　is　introduced　for　each　user　to　mitigate　the　harmful　effect　of　inter-subarray　uncertainties.　The　proposed　method　performs　carrier　frequency　offset　(CFO)　estimation　and　subsequent　data　detection　individually　for　each　user.　The　Cramer-Rao　bound　of　CFO　estimation　is　derived.　We　also　provide　numerical　results　to　show　the　effectiveness　of　the　proposed　method.