The invention discloses an enterprise-class information system. The enterprise-class information system is established through micro-service architecture, and micro applications and micro services are uniformly configurated and managed through uniform application architecture. The enterprise-class information system comprises an infrastructure unit, a service unit and an application unit, wherein the infrastructure unit is used for providing software and hardware resources and achieving virtualization management of a network; the service unit is used for achieving atom services and conducting classification management, conducting service achievement and service management with the technology provided in an integrated platform and providing an uniform service access support for achievement of the micro applications; the application unit is used for conducting modularization packaging of interactive interfaces of the applications and the services, achieving directly-operable micro applications according to actual demands, conducting pooling management for micro applications, forming the applications in a clustering mode and providing an uniform access entrance for all kinds of terminals. By means of the enterprise-class information system, problems appearing in information transformation of existing large traditional enterprises can be solved, micro-service design of the information system is achieved, and the stability and the reliability of the system are improved.