The present invention relates to a system and method for managing an application wherein a function of a controlled device can be dynamically extended by continually updating the application for use in the controlled device. According to the present invention, a framework capable of providing integrated support to a variety of home network middleware is loaded on an application server corresponding to a control device, and Internet access services and middleware services for accessing various kinds of devices are bundled into the framework. Thus, application installation and management can be performed within a home network environment regardless of the hardware, network protocol and operating system used.