Along　with　a　rapid　growth　of　cloud　computing　technology　and　its　deep　application　in　Agriculture　Intelligent　Information　System,　Agriculture　Industry　information　security　and　privacy　has　become　a　highlight　of　the　issue　about　Agriculture　Cloud　Information　System.　Encrypting　is　a　conventional　information　security　means,　however,　hitherto　almost　all　encryption　scheme　cannot　support　the　operation　based　on　cipher-text.　As　a　result,　it　is　a　difficult　to　build　up　the　corporate　and　individual　information　security　and　privacy-securing　in　the　information　system　based　on　cloud　computing　platform.　In　order　to　construct　the　information　security　and　privacy　of　cloud　computing　infrastructure,　down　to　the　practicality　of　Agriculture　Information　System　the　project　crew　brings　forward　An　Innovative　Encryption　Method　for　Agriculture　Intelligent　Information　System　based　on　Cloud　Computing　Platform,　OCEVMO　for　short,　which　takes　root　in　the　theory　of　matrix,　and　supports　a　series　of　cipher-text-operation　essential　to　build　a　secure　communication　protocol　between　user,　owner　and　cloud　server.　Beside　the　conventional　encryption-decryption　operation,　OCEVMO　implements　4　operations　of　cipher-textnumerical-　value　data　such　as　adding,　subtracting,　multiplying　and　dividing.　Theoretical　analysis　and　experimental　performance　estimation　demonstrates　that　OCEVMO　is　of　INDCCA　security,　capable　of　performing　crypo-function　with　a　moderate　speed.　Its　favorable　versatile　performance　gives　promise　of　the　interactive　operation　Securing　corporateindividual　privacy　in　the　area　of　Agriculture　Intelligent　Information　System.　©　2014　ACADEMY　PUBLISHER.