Intentions,　an　integral　part　of　the　mental　state　of　an　agent,　play　an　important　role　in　determining　the　behavior　of　rational　agents.　There　are　several　models　of　intention　based　on　normal　modal　logic.　But　these　theories　suffer　from　a　serious　omniscience　problem.　It　is　argued　that　intention　is　not　a　normal　modal　operator,　and　another　intention　model　is　presented.　It　doesn＇t　have　the　logical　omniscience　problem　and　other　related　problems　such　as　side-effect　problem,　etc..　Compared　with　Konolige　and　Pollack＇s　model　of　intention,　this　model　is　not　only　simpler　and　more　natural,　but　also　satisfies　the　K-axiom　and　the　Joint　Consistency.　Actually　it　gives　a　new　method　for　semantic　representation　of　non-normal　modal　operators　based　on　normal　possible　worlds.