Based application service network identification method and system access

The present invention discloses a method of network access based application service identification, the method comprising: the client application process access server, the authentication server based on the identity of the client and the application server to get the user certificate and the application server side, the identity of the client and the application server for authentication, and the identity of the client and the application server after verification by the client and the application server negotiation to get the message authentication key; the end user and the application server according to the message authentication key, confidential service data transmission applications. The present invention also discloses an application server system. Embodiments of the present invention in large-scale applications and services network application server and clients unified certification, so that the client can access the same identity different application server, in order to bring great convenience.