we　put　the　technology　opportunity　analysis　(TOA)　on　a　very　important　position　during　the　commercialization　of　emerging　technologies,　and　rind　all　necessary　information　from　a　variety　of　sources　for　the　accurate　analysis.　However,　the　complex　and　redundancy　of　the　data　make　the　work　extremely　difficulty,　thanks　to　the　advent　of　web　mining　(WM),　which　gives　us　a　window　in　this　area　to　allow　the　management　of　science　and　technology(S&T)　becoming　more　convenient.　In　this　paper,　we　use　the　Keyword-based　MA　as　the　analysis　vector　doing　the　research　on　the　role　of　WM　on　the　TOA,　and　attempt　to　give　the　focus　of　future　research　in　the　final.