The embodiment of the invention discloses a resource adjustment method and apparatus. The method comprises the following steps: obtaining resource upper limit values of to-be-adjusted resources of servers and resource occupancy rates of the to-be-adjusted resources by services; determining a target resource allocation state according to the resource upper limit values and the resource occupancy rates, wherein the target resource allocation state is an occupation relationship between the services and the to-be-adjusted resources of the servers after resource adjustment; and adjusting the occupation relationship between the services and the to-be-adjusted resources of the servers according to the target resource allocation state. By application of the scheme provided by the embodiment of the invention, the resource adjustment efficiency can be improved, and errors are reduced.