For　it　can　meet　needs　of　negotiation　among　organizations　take　place　in　different　time　and　place,　and　for　it　can　make　its　course　more　rationality　and　result　more　ideal,　persuasion　based　on　agent　can　improve　cooperation　among　organizations　well.　Integrated　emotion　change　in　agent　persuasion　can　further　bring　agent　advantage　of　artificial　intelligence　into　play.　Emotion　of　agent　persuasion　is　classified,　and　the　concept　of　positive　change　degree　is　given.　Based　on　this,　persuasion　model　based　on　positive　change　degree　of　agent　emotion　is　constructed,　which　is　explained　clearly　through　an　example.　Finally,　the　method　of　relative　evaluation　is　given,　which　is　also　verified　through　a　calculation　example.　(C)　2012　Published　by　Elsevier　B.V.　Selection　and/or　peer-review　under　responsibility　of　Garry　Lee