Embodiments of the present disclosure relate to a method and an apparatus for data backup. The method comprises selecting, from a service store, a backup service for an application. The method further comprises setting, for the application, configuration information associated with the selected backup service. Additionally, the method further comprises in response to the backup service being enabled, deploying a backup service agent corresponding to the backup service to a source node associated with the application based on the configuration information, such that data of the application is backed up from the source node to a target node via the backup service agent.