Industry　competitive　ability　is　the　abstract　concept　for　evaluating　the　overall　performance　of　enterprises　in　special　industrial.　It　is　important　to　evaluate　industry　competitive　ability　of　each　region　in　order　to　let　government　understand　the　strong　and　weakness　of　their　industries.　The　goal　of　this　research　is　to　evaluate　and　analyze　smart　phone　industry　competitive　ability　among　Taiwan,　South　Korea　and　China　by　using　multi　criteria　decision　making　method.　In　aspect　of　criteria　evaluation,　we　use　maximum　deviation　method,　In　aspect　of　alternative　evaluation,　TODIM　is　applied　in　this　research.　According　to　the　analyzing　result,　it　can　be　found　that　the　smart　phone　industry　competitive　ability　of　Taiwan　and　South　Korea　has　been　gradually　fall　behind　by　China.　©　2018　Association　for　Computing　Machinery.