Abstract:According to the characteristics of the current small and medium-sized manufacturing enterprises, the status of informatization and information systems, and the problems facing information system integration, this paper proposes general requirements for enterprise information system integration from the aspects of organizational structure adjustment, business integration, data integration, software integration, and integration methods. In view of the shortcomings of the current integration methods, a Central platform system composed of a mid-stage service / data / algorithm / model is proposed in combination with the mid-stage technology and cloud computing. The study found that the China-Taiwan system provides enterprises with the ability to innovate quickly and at low cost. Data Central platform and business Central platform naturally solve the problems of low data sharing, complex business processes, and inconsistent data standards. The algorithm / model Central platform provides data mining analysis services for enterprises or users and provides computing service support for application development.