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The conception of cloud computing is a great network application model that set forth by Google. Narrowed meaning of cloud computing refers to delivery and applying model of IT basic facilities and it means to gain necessary resources by means of necessary and easy extension through the network. Generalized meaning of cloud computing refers to delivery and applying model of service and it means to get necessary service by means of necessary and easy extension through the network. The article mainly studies the application in aspects of cloud computing technology for enterprise IT basic facility supply and describes the study background, developing status, system structure, private cloud, service level and advantages of cloud computing etc, generally analyses the conception and technical level of IaaS model (basic facility is service), sets forth a kind of automatic supply solution for enterprise IT basic facilities based on IaaS service model of private cloud computing, carries out analysis for business requirements, general design and layering detailed design for the solution and describes hardware structure of solution and realization for logic layering of solution in detail. At last, it implements test analysis for the solution to verify the effect on aspects of supply for enterprise IT basic facilities by cloud computing technology. [ABSTRACT FROM PUBLISHER]