The　analytic　Customer　Relationship　Management　is　the　key　by　which　enterprises　gain　customers　and　realize　intellectualization　in　Customer　Relationship　Management.　This　paper　has　proposed　one　kind　of　improved　intellectualization　model　of　Customer　Relationship　Management　based　on　Rough　Set　this　model　carries　on　the　data　pretreatment　and　data　mining　at　one　time,　in　the　model　the　data　mining　algorithm　has　guaranteed　the　authenticity　of　the　data,　has　omit　the　data　pretreatment　as　one　step,　has　dodged　the　strict　constraint　to　data　which　the　Rough　Set　algorithm　requires.　By　the　case　real　diagnosis,　this　model　is　highly　effective,　feasible.