This　paper　discusses　the　portfolio　selection　problem　based　on　the　possibilistic　theory.　The　possibilistic　portfolio　model　with　general　constraints　to　investment　is　proposed　by　means　of　possibilistic　mean　value　and　possibilistic　variance.　The　conventional　probabilistic　mean-variance　model　can　be　simplified　under　the　assumption　that　the　returns　of　assets　are　triangular　fuzzy　numbers.　Finally,　a　numerical　example　of　the　portfolio　selection　problem　is　given　to　illustrate　our　proposed　effective　means　and　approaches.