A method for transmitting and receiving data performed by an user equipment (UE) in a wireless communication system according to the present disclosure includes receiving a first message for informing that a radio link quality value of a first base station (BS) for a specific Mission Critical Service (MCS) is changed from the first BS; receiving a second message including second radio link quality information associated with a radio link quality value of a second BS from the at least one second BS; and maintaining the first BS or switching to one of the at least one second BS based on the received first radio link quality information and the second radio link quality information.