A service access allocation method is provided. The method includes providing a plurality of access points for an entire region divided into a plurality of divided areas, where each divided area includes one or more access points. The method also includes, based on the divided areas and a total number of service accessing users corresponding to each divided area, obtaining a weighting coefficient of each divided area. Each divided area has a plurality of service accessing users. Further, the method includes using the weighting coefficient corresponding to each divided area to perform a weighted random calculation to determine one of the plurality access points allocated to a current user to access a service at nearest proximity, such that the current user accesses the allocated access point to obtain the service provided by the allocated access point.