System and method for utilizing application-oriented network characterized in that the authentication unit generates a first authentication result and the connection unit determines that the user unit switches the connection service from the first connection service to the second connection service or not based on the results of that first verification

The present invention discloses a system that utilizes an application-oriented network which includes a user unit with a specific application program, which transmits a first data to execute the specific application program in response to the user unit, wherein the first data associated with a user identity logged into the specific application program, an identification data of the user unit, and an identification data of the specific application program; a connection unit configured to provide one of a first connection service or a second connection service as a connection service used by the user unit, wherein the transmission spectrum range of the first connection service does not overlap with the transmission spectrum range of the second connection service; and an authentication unit that is arranged to authenticate the first data received through the connection unit, and generates a first authentication result. Wherein, the connection unit determines that the user unit switches the connection service fro