Resource pool software downloading method and device and server

The invention discloses a resource pool software downloading method and device and a server, and the method comprises the steps: judging whether a software resource corresponding to a software request exists in a resource pool agent or not when the software request sent by a host is received; when the software resource corresponding to the software request does not exist in the resource pool agent, sending a request message of the software resource; and receiving software resources fed back by the yum source, sending the fed-back software resources to the host and storing the fed-back software resources to the resource pool agent. Therefore, the resource request of the host machine can be processed in a resource pool agent mode, software resources requested by the host machine only need to be downloaded in the resource pool agent, on-demand downloading of the software resources is achieved, synchronous operation of each yum source mirror image does not need to be carried out any more, redundant operation of m