Aiming　at　overcoming　the　limitations　of　artificial　intelligence　(AI)　and　decision　support　system　(DSS),　not　expressing　complex　decision-making　process,　a　scheme　of　decision　support　system　based　on　data　mining　is　proposed　after　introducing　the　definition.　The　method　is　based　on　the　characteristics　of　decision　support　system　of　artificial　intelligence　technology,　realizes　the　system　platform　with　MATLAB　programming　tool　in　which　the　association　rule　algorithm　based　on　decision　tree　is　implemented,　and　gives　the　concrete　structure.　The　experimental　results　show　that　the　proposed　scheme　and　implementation　platform　have　good　passability　and　can　provide　a　good　platform　for　further　research　on　new　data　mining　algorithms.The　validity　and　practicability　of　the　improved　algorithm　and　platform　are　further　verified　multi-attribute　decision　making　based　on　calyx　confirmation　population　problem.　©　2019　IEEE.