Method and system for managing and dispatching cloud resource

The invention provides a method for managing and dispatching cloud resources, which comprises the following steps: dividing a value range of each attribute of the resource into a plurality of attribute areas, distributing corresponding logic area index number to each attribute area, mapping each resource to a united area index determined by the logic area index number attributed to each attribute value of the resource, when receiving a resource request of a user, determining the logic area index number of the restrict upper limit and the restrict lower limit of each attribute of the requested resource, gaining a plurality of united area indexes satisfying the resource request, then selecting one united area index from the united area indexes, selecting one resource from a logic resource pool corresponding to the selected united area index, and providing the resource to the user. The method can satisfy the requirements of the user resource request with high concurrence degree and the resource renovation with high frequency in the cloud computing environment.