The　incentive　variable　weight　vector　is　researched.　Firstly,　a　definition　of　the　incentive　type　variable　weight　vector　considering　decision　maker＇　risk　attitude　is　proposed,　the　state　weight　vector　of　this　variable　weight　is　discussed,　it　is　proved　that　incentive　variable　weight　vector　is　induced　by　utility　function;　Secondly,　the　coefficient　of　risk　aversion　of　incentive　variable　weight　vector　is　defined,　and　the　relationships　between　the　coefficient　of　risk　aversion　and　incentive　variable　weight　vector　are　discussed;　Then,　a　new　method　for　multi-attribute　decision　making　based　on　incentive　variable　weight　vector　is　proposed;　Finally,　the　example　shows　that　the　proposed　method　is　correct　and　effective.　©　2017,　Editorial　Board　of　Journal　of　Systems　Engineering　Society　of　China.　All　right　reserved.