Based　on　the　theory　and　method　of　system　dynamics　(SD),　the　elementary　characteristic　and　evolution　of　university-industry　cooperation　was　studied　in　this　paper.　According　to　these　analyses,　the　SD　model　was　set　up,　which　was　running　with　Vensim　software.　The　results　of　simulation　showed　that　enterprises　took　the　principal　part　during　the　cooperation　and　factors　such　as　invest　ratio　of　R&D　had　certain　effect　on　the　evolution　of　university-industry　cooperation.