By　using　the　Delphi　method　to　assess　the　possibility　of　an　enterprise　risk　event,　and　to　evaluate　the　enterprise　inside　strengths　and　weaknesses　to　deal　with　the　risk　event,　to　appraise　the　enterprise　outside　opportunities　and　threats　to　achieve　the　objectives.　A　SWOT　coordinate　system　is　constructed　by　adopting　strengths,　weaknesses,　opportunities,　threats　as　4　semidimensional,　respectively.　A　series　of　new　concepts　are　introduced　such　as　positive　intensity　of　risk　and　its　gradient,　negative　intensity　of　risk　and　its　gradient,　risk　coefficient,　risk　quadrilateral,　risk　azimuth,　risk　vector,　risk　spectrum　to　discuss　risk　coping　strategies.　A　new　approach　of　system　analytical　SWOT　model　by　combining　qualitative　and　quantitative　on　selecting　risk　coping　strategies　is　established.　©　2010　IEEE.