The　paper　analyses　the　traditional　methods　of　the　stream　video　integrity　technology　and　gives　some　possible　signature　schemes　for　video　integrity,　including　the　batch　signature　which　can　improve　the　efficiency　in　signature　generation,　sanitizable　signature　which　can　tolerate　non-malicious　operation,　and　Merkle-tree　signature.　What＇s　more,　we　present　a　new　idea　for　video　integrity　based　on　the　batch　signature　scheme,　which　is　more　efficient　than　traditional　methods.　©　2013　ACADEMY　PUBLISHER.