A direct handover method, comprising: transmitting, by a source-side access network node, a handover message to a target-side access network node, wherein the handover message carries identification information of the source-side core network node, and identification information allocated for User Equipment, UE, by the source-side core network node; selecting, by the target-side access network node, a target-side core network node, and transmitting, by the target-side access network node, the handover message to the target-side core network node; acquiring, by the target-side core network node, an address of a source-side core network node based on the identification information of the source-side core network node, and transmitting, by the target-side core network node, a handover request message to the source-side core network node; transmitting, by the source-side core network node, a handover response message to the target-side core network node, wherein the handover response message comprises context information of the UE; sending, by the target-side core network node, a bearer update request or a bearer creating request to a user plane node; and transmitting, by the user plane node, to the target-side core network node a bearer update acknowledgement message or a bearer creating acknowledgement message, characterized in that the method further comprises: transmitting, by the target-side core network node, a handover acknowledgement message to the source-side core network node; and initiating, by the source-side core network node, a resource release with the source-side access network node after receiving the handover acknowledgement message. transmitting, by a source-side access network node, a handover message to a target-side access network node, wherein the handover message carries identification information of the source-side core network node, and identification information allocated for User Equipment, UE, by the source-side core network node; selecting, by the target-side access network node, a target-side core network node, and transmitting, by the target-side access network node, the handover message to the target-side core network node; acquiring, by the target-side core network node, an address of a source-side core network node based on the identification information of the source-side core network node, and transmitting, by the target-side core network node, a handover request message to the source-side core network node; transmitting, by the source-side core network node, a handover response message to the target-side core network node, wherein the handover response message comprises context information of the UE; sending, by the target-side core network node, a bearer update request or a bearer creating request to a user plane node; and transmitting, by the user plane node, to the target-side core network node a bearer update acknowledgement message or a bearer creating acknowledgement message, characterized in that the method further comprises: transmitting, by the target-side core network node, a handover acknowledgement message to the source-side core network node; and initiating, by the source-side core network node, a resource release with the source-side access network node after receiving the handover acknowledgement message. transmitting, by the target-side core network node, a handover acknowledgement message to the source-side core network node; and initiating, by the source-side core network node, a resource release with the source-side access network node after receiving the handover acknowledgement message.