A method for optimizing data forwarding in a dual-connectivity handover scenario in a wireless communication network, characterized in that, the method comprises: in a condition that a third node is required to acquire whether an X2 interface exists between a first node and a second node, enabling the first node to determine whether the X2 interface exists between the first node and the second node by notifying by the third node information of the second node to the first node; receiving, by the third node, indication information from the first node, wherein the indication information is used to indicate that the X2 interface exists between the second node and the first node or the indication information is used to indicate that a direct-forwarding path is available; and transmitting by the third node, a forwarding address of the first node to the second node; wherein the first node is an SeNB during inter-MeNB handover with the SeNB unchanged; the second node is an S-MeNB during inter-MeNB handover with the SeNB unchanged and the third node is a T-MeNB during inter-MeNB handover with the SeNB unchanged; and the notifying, by the third node, the information of the second node to the first node comprises: notifying, by the T-MeNB, the information of the S-MeNB to the SeNB in an SeNB modification request message; and receiving, by the third node, indication information from the first node comprises: receiving, by the T-MeNB, indication information in an SeNB modification request confirmation from the SeNB; or wherein the first node is a T-SeNB in a process of adding an SeNB after handover; the second node is a eNB in the process of adding the SeNB after handover and the third node is a T-MeNB in the process of adding the SeNB after handover; and the notifying, by the third node, the information of the second node to the first node comprises: notifying, by the T-MeNB, the information of the eNB to the T-SeNB in an SeNB adding request message; and receiving, by the third node, indication information from the first node comprises: receiving, by the T-MeNB, indication information in an SeNB adding request confirmation from the T-SeNB. in a condition that a third node is required to acquire whether an X2 interface exists between a first node and a second node, enabling the first node to determine whether the X2 interface exists between the first node and the second node by notifying by the third node information of the second node to the first node; receiving, by the third node, indication information from the first node, wherein the indication information is used to indicate that the X2 interface exists between the second node and the first node or the indication information is used to indicate that a direct-forwarding path is available; and transmitting by the third node, a forwarding address of the first node to the second node; wherein the first node is an SeNB during inter-MeNB handover with the SeNB unchanged; the second node is an S-MeNB during inter-MeNB handover with the SeNB unchanged and the third node is a T-MeNB during inter-MeNB handover with the SeNB unchanged; and the notifying, by the third node, the information of the second node to the first node comprises: notifying, by the T-MeNB, the information of the S-MeNB to the SeNB in an SeNB modification request message; and receiving, by the third node, indication information from the first node comprises: receiving, by the T-MeNB, indication information in an SeNB modification request confirmation from the SeNB; or wherein the first node is a T-SeNB in a process of adding an SeNB after handover; the second node is a eNB in the process of adding the SeNB after handover and the third node is a T-MeNB in the process of adding the SeNB after handover; and the notifying, by the third node, the information of the second node to the first node comprises: notifying, by the T-MeNB, the information of the eNB to the T-SeNB in an SeNB adding request message; and receiving, by the third node, indication information from the first node comprises: receiving, by the T-MeNB, indication information in an SeNB adding request confirmation from the T-SeNB.