Knowledge　has　become　the　most　important　resource　and　a　source　of　sustainable　competitive　advantage.　From　the　aspects　of　contact　points　and　differences　between　knowledge　management　and　information　management,　this　article　points　out　the　importance　of　knowledge　management.　Then　it　discusses　on　how　to　implement　knowledge　management　to　improve　the　management　level　and　capacity　in　the　enterprises.