Based　on　the　perspective　of　knowledge　transfer　and　the　technology　acceptance　model　(TAM),　this　paper　constructs　a　university　technology　transfer　sustainable　development　model　that　considers　the　inventor＇s　technology　service　from　the　perspective　of　the　long-term　cooperation　of　enterprise,　and　analyzes　the　mediating　effect　of　the　inventor＇s　technology　service　on　university　technology　transfer　sustainability.　By　using　270　questionnaires　as　survey　data,　it　is　found　that　the　availability　of　an　inventor＇s　technology　service　has　a　significant　positive　impact　on　the　attitude　tendency　and　practice　tendency　of　enterprise　long-term　technological　cooperation;　enterprise　technology　absorption　capacity　and　trust　between　a　university　and　an　enterprise　also　have　significant　influence　on　an　inventor＇s　technical　service　availability.　Therefore,　the　inventor＇s　technology　service　acts　as　a　mediator　in　the　relationship　between　university　technology　transfer　sustainability　and　influence　factors.　Universities　ought　to　establish　the　technology　transfer　model,　which　focuses　on　the　inventor＇s　tacit　knowledge　transfer　service,　and　promotes　the　sustainable　development　of　the　university.