Compared　with　the　study　based　on　the　symmetric　information　between　the　enterprise＇s　native　and　exterior,　the　paper　studies　the　asymmetric　information　by　data　mining　of　the　enterprise＇s　native　and　exterior　information,　and　then　analyzes　the　relationship　between　them.　At　last,　the　software　realization　frame　work　is　presented.　The　data-mining　of　the　enterprise＇s　native　information　is　very　important　for　its　decision　and　the　CRM　study　should　include　the　enterprise＇s　native　information　and　should　compare　their　native　and　exterior　information.　The　example　is　discussed　in　the　data-mining　of　customers＇　information　and　the　employees＇　information.