A method is disclosed for managing a connection of an UE for transmitting and receiving a V2X message of a first network node in a wireless communication system, the connection management method including the steps of: allowing a first network node to determine that an UE for performing only a PC5 operation will be maintained in the ECM CONNECTED state; and allowing the first network node to transmit information requesting the release of a part of a packet data network (PDN) connection, to a second network node, after the determination.