We　present　a　scheme　for　realizing　a　multi-atom　NOON　state　via　cavity　QED　system.　The　scheme　bases　on　the　Jaynes-Cumming　mode　with　collective　atomic　bosonic　mode.　In　the　process,　a　series　of　control　atoms　are　sent　through　two　single　mode　cavities　which　are　initially　in　vacuum　states　and　have　the　same　collective　atoms.　After　the　suitable　interaction　time,　the　collective　atoms　in　two　cavities　are　in　the　desired　state.　©　2009　Elsevier　B.V.　All　rights　reserved.