A method for connection management, performed by a first terminal for New Radio-Vehicle to Everything, NR-V2X, comprising: sending , by the first terminal , first connection management information corresponding to a first service to a second terminal , wherein the first connection management information is used for managing a unicast connection between the first terminal and the second terminal, wherein the first connection management information comprises a service identifier of the first service, and different services correspond to different connection management information; and receiving , by the first terminal, first response information sent by the second terminal, wherein the first response information is a response to the first connection management information; characterized in that the first connection management information comprises a direction identifier of a configuration direction; wherein the configuration direction is used for indicating a control terminal in the first terminal and the second terminal, when the configuration direction is a first configuration direction, the first terminal is a control terminal of the service, and when the configuration direction is a second configuration direction, the second terminal is a control terminal of the service; wherein different services in the same configuration direction are not distinguished for a connection management process and connection management processes for different configuration directions are distinguished; wherein sending, by the first terminal, the first connection management information corresponding to the first service to the second terminal comprises: sending, by the first terminal, the first connection management information to the second terminal according to a source address corresponding to the configuration direction. sending , by the first terminal , first connection management information corresponding to a first service to a second terminal , wherein the first connection management information is used for managing a unicast connection between the first terminal and the second terminal, wherein the first connection management information comprises a service identifier of the first service, and different services correspond to different connection management information; and receiving , by the first terminal, first response information sent by the second terminal, wherein the first response information is a response to the first connection management information; characterized in that the first connection management information comprises a direction identifier of a configuration direction; wherein the configuration direction is used for indicating a control terminal in the first terminal and the second terminal, when the configuration direction is a first configuration direction, the first terminal is a control terminal of the service, and when the configuration direction is a second configuration direction, the second terminal is a control terminal of the service; wherein different services in the same configuration direction are not distinguished for a connection management process and connection management processes for different configuration directions are distinguished; wherein sending, by the first terminal, the first connection management information corresponding to the first service to the second terminal comprises: sending, by the first terminal, the first connection management information to the second terminal according to a source address corresponding to the configuration direction. <EOS>