An extended reality (XR) device and a method for controlling the same are disclosed. The XR device is applicable to 5G communication technology, robot technology, autonomous driving technology, and Artificial Intelligence (AI) technology. The XR device includes a communication module configured to communicate with a Head-Mounted Display (HMD) that is worn by a user to provide the user with Virtual Reality (VR) content, a camera configured to receive an image of a first space including the user, and a processor configured to transmit VR content to the HMD through the communication module. The processor recognizes a position of the user and positions of a plurality of real-world objects within an image of the first space. When the user moves closer to at least one of the recognized objects by a predetermined distance or less, the processor warns the user of possibility of collision with the at least one recognized object.