An apparatus and method for configuring a firewall application for controlling network access of applications included on a mobile terminal are provided. The method includes executing the firewall application displaying a list of at least one application stored on the mobile terminal, selecting at least one of the applications from the displayed list, selecting at least one parameter type corresponding to the at least one selected application, and configuring at least one parameter setting corresponding to the at least one selected parameter type, wherein the firewall application is executed according to the configured at least one parameter setting.