Aiming　at　the　multi-attribute　group　decision　making　method　which　has　the　characters　that　the　decision　preference　is　conflicting　and　the　weight　information　is　unknow,　a　decision　making　method　is　proposed　based　on　multi-object　decision　making.　Firstly,　the　multi-objective　decision　model　which　takes　the　decision　scheme　relative　closeness　and　members　of　the　decision　making　preference　conflict　degree　as　the　goals　is　proposed.　Then,　the　attribute　weights　and　decision　makers　weights　are　obtained　by　using　the　minimax　method　for　solving　the　multi-objective　decision　model,　and　the　optimal　scheme　is　established.　Finally,　a　numerical　example　is　given　to　illustrate　the　effectiveness　of　the　proposed　approach.　©　2016,　Editorial　Office　of　Control　and　Decision.　All　right　reserved.