Prefabrication　offers　substantial　benefits　including　reduction　in　construction　waste,　material　waste,　energy　use,　labor　demands,　and　delivery　time,　and　an　improvement　in　project　constructability　and　cost　certainty.　As　the　material　cost　accounts　for　nearly　70%　of　the　total　cost　of　the　prefabrication　project,　to　select　a　suitable　material　supplier　plays　an　important　role　in　such　a　project.　The　purpose　of　this　study　is　to　present　a　method　for　supporting　supplier　selection　of　a　prefabrication　project.　The　proposed　method　consists　of　three　parts.　First,　a　list　of　assessment　criteria　was　established　to　evaluate　the　suitability　of　supplier　alternatives.　Second,　Building　Information　Modelling　(BIM)　was　adopted　to　provide　sufficient　information　about　the　project　requirements　and　suppliers＇　profiles,　which　facilitates　the　storage　and　sharing　of　information.　Finally,　the　Analytic　Hierarchy　Process　(AHP)　was　used　to　rank　the　importance　of　the　assessment　criteria　and　obtain　the　score　of　supplier　alternatives.　The　suppliers　were　ranked　based　on　the　total　scores.　To　illustrate　how　to　use　the　proposed　method,　it　was　applied　to　a　real　prefabrication　project.　The　proposed　method　facilitates　the　supplier　selection　process　by　providing　sufficient　information　in　an　effective　way　and　by　improving　the　understanding　of　the　project　requirements.