Business　system　modeling　of　an　agricultural　enterprise　is　one　of　the　difficulties　in　developing　and　researching　an　agricultural　enterprise　management　information　system.　Given　the　inadequate　description　of　concurrent　and　synchronal　events　in　the　traditional　modeling　methods,　this　paper　presents　a　modeling　method,　which　uses　Colored　Petri　Net.　The　paper　discusses　the　application　of　Colored　Petri　Net　in　system　modeling　with　the　example　of　an　agricultural　enterprise　production　management　system　model,　and　analyzes　the　feasibility　and　effectiveness　of　that　model.　©　2009　by　International　Federation　for　Information　Processing.