Provided are a method for performing task processing on a common service entity, a common service entity, an apparatus and a medium for performing task processing. The method includes: receiving a task processing request; determining whether the common service entity itself performs the processing request; forwarding the request to another common service entity in a case where it is determined that the common service entity itself does not perform the task processing request, wherein the common service entity is associated with the another common service entity; performing, by the common service entity, the task processing request in a case where it is determined that the common service entity itself performs the task processing request.