An administrator terminal connected to an image forming apparatus and a client, an image forming system including the same, and a method to remotely an install a driver. The method to remotely an install a driver in an administrator terminal connecting with at least one image forming apparatus and at least one client includes searching for at least one image forming apparatus connected to the administrator terminal, selecting at least one client sharing and using the searched image forming apparatus, selecting an image forming apparatus server according to a network connection type of the image forming apparatus, and installing the driver of the image forming apparatus on the at least one selected client through the selected image forming apparatus server. Thus, at least one client is selected among clients where the driver is installed, and the driver is simultaneously installed according to the selected clients, thereby saving time and cost and providing a convenience to a user.