Provided are a method and apparatus for managing resources of a Universal Plug and Play (UPnP) device based on a connection status of a control point. The method of managing resources of a controlled device includes: monitoring an invocation of an action representing a connection of a control point for a predetermined time; determining whether the control point is connected to the controlled device or not by considering whether the monitored action is invoked or not; and increasing available resources by selectively deactivating an application which is controlled by the control point according to the determination result. Accordingly, the resources of the UPnP device can be effectively managed.