1.TheBriefIntroductionofFieldbusControlSystem1.2ConceptofFieldbus1.3BenefitsofFieldbus2.InternationalStandardandPresentConditionofFieldbus2.2OthersIECTC17B：SDS（SmartDistributedSystem）；ASI（ActuatorSensorInterface）；DeviceNETISO11898CANintroducedbyISO2.3TheTrendofFieldbusDevelopment--CoexistingofDifferentFieldbusesBusinessbenefitFieldbusstandardsareheldbydifferentautomationproductmanufacturersrespectively.ApplicationDifferentfieldbusesareusedindifferentapplicationfield,noonesolvesallindustrialproblems.3.ProblemsandSolutionsofMultibusIntegrationinFieldbusControlSystem3.2SolutionsofMultibusIntegration3.3ClassificationofMultibusIntegration3.4Gateway--DeviceLevelSolutionofMultibusIntegration3.4.2TheGatewayBasedonDifferentClusterFieldbusProtocols3.4.2.1StructureoftheGatewayBasedonDifferentClusterFieldbusProtocols3.5MultibusIntegrationBasedonOPC---SystemLevelSolution