Disclosed are a method for transmitting and receiving data in a wireless communication system, and a device for same. Specifically, a method for a user equipment (UE) to receive a physical downlink shared channel (PDSCH) in a wireless communication system includes: receiving configuration information related to the PDSCH; receiving downlink control information (DCI) for scheduling the PDSCH; receiving a first PDSCH and a second PDSCH on the basis of the configuration information and the DCI, wherein the DCI includes first transmission configuration indication (TCI)-related information and second TCI-related information.