The present invention discloses an service realization method for the fair user policy, mainly comprising the following steps: A, the user accesses an accessing server and goes to an AAA server to fulfill the accessing authority inspecting; B, the accessing server receives the grouping data service request of the user and matches the fee calculating rules and the policy information; if the match is successful, the step D comes up, otherwise the fee calculating rules and the policy requests are sent to PCRF; wherein, the fee calculating rules have relative relationships with the user type, the service type and the fee calculating policy, the policy information have relative relationships with the fee calculating policy, the policy cycle, the flux quota and the pointed speed; C, the PCRF server sends fee calculating rules and the policy response to the accessing server and issues the relative fee calculating rules and the policy information; D, the users process the transmission of the service data, access to the network and execute the policy information of the service and add up the data flow rate of the service. The present invention can effectively elevate the justification of the network resources used by the users.