A method and a device for managing a tab window indicating a group including heterogeneous applications. The method includes outputting a display window comprising at least one or more objects for executing one or more applications on a terminal window, receiving a user input that selects the at least one or more objects and moves the selected at least one or more objects to a region excluding the display window, generating an application group comprising at least one or more applications corresponding to the selected at least one or more objects according to the received user input, and outputting a tab window indicating the generated application group to the terminal window.