The existing designs for providing Anycast services are either to confine each Anycast group to a preconfigured topological region or to globally distribute routes to individual Anycast group which causes the routing tables to grow proportionally to the number of all global Anycast groups in the entire Internet to result in Anycast scalability problem, both of which restrict and hinder the application and development of Anycast services. A new scheme on implementing Anycast service on application layer is proposed in this paper and it solves not only Anycast scalability but also other existing problems, such as router table explosion, TCP communication errors, and so on, which are generally caused by performing Anycast services on IP layer. At last, this paper deeply analyzed and discussed the feasibility and validity of this new scheme according to experimental data.