Method and system for controlling configuration of stand by mode by using mobile communication network

A method for controlling setup of a standby mode in a mobile communication terminal by using a mobile communication network and a system thereof are provided to prevent a downloaded application from being used on a standby screen by remotely controlling the standby mode of the mobile terminal, wherein the application is downloaded when the mobile communication terminal is operated in an agent mode. A method for controlling setup of a standby mode in a mobile communication terminal by using a mobile communication network comprises the following several steps. An event for controlling a standby mode occurs(S210). The event is analyzed and it is checked whether the standby mode has to be changed into an OEM mode(S220). If the standby mode has to be changed into the OEM mode, an OEM mode control SMS message is generated and is transmitted to the mobile communication terminal via the mobile communication network(S230). If the standby mode has to be changed into an agent mode, an agent mode control SMS message is generated and is transmitted to the mobile communication terminal via the mobile communication network(S250).