The invention belongs to the technical field of computers, and particularly relates to a system resource allocation method and device, a computer readable storage medium and a server. The method comprises the following steps: receiving a system resource allocation request sent by terminal device, and extracting a task identifier of a system task from the system resource allocation request; respectively acquiring system task information of the system task on each attribute dimension from each preset data source according to the task identifier; respectively calculating the system resource allocation quantity of the system task according to the system task information under various preset system resource allocation modes; and selecting a preferred allocation mode from the various system resource allocation modes, and performing system resource allocation on the system task according to the preferred allocation mode, the preferred allocation mode being a system resource allocation mode with the maximum system resource allocation amount. The accuracy of the system resource allocation result is greatly improved, time and labor are saved, and the system resource allocation efficiency isgreatly improved.