A Device-to-Device, D2D, resource configuration information processing method, comprising: when a source network device determines that a first terminal allowed to perform a D2D operation performs a handover operation, the source network device selecting a handover target Public Land Mobile Network, PLMN, of the first terminal; when the first terminal is handed over to a target cell, and when the handover target PLMN is the same as any one of PLMNs in an allowed D2D PLMN list, the source network device sending D2D resource configuration information corresponding to the first terminal to a target network device of the target cell, characterized in that the method further comprises: the target network device saving and updating the D2D resource configuration information of the first terminal such that the D2D resource configuration information is still effective in a next handover process of the first terminal, if a serving PLMN of the first terminal after handover is consistent with any one of PLMNs in information of the allowed D2D PLMN list, the target network device continuously allocates D2D resources according to the D2D resource configuration information of the first terminal and maintains current D2D operation of the first terminal, wherein the D2D resource configuration information further comprises: the information of the allowed D2D PLMN list. when a source network device determines that a first terminal allowed to perform a D2D operation performs a handover operation, the source network device selecting a handover target Public Land Mobile Network, PLMN, of the first terminal; when the first terminal is handed over to a target cell, and when the handover target PLMN is the same as any one of PLMNs in an allowed D2D PLMN list, the source network device sending D2D resource configuration information corresponding to the first terminal to a target network device of the target cell, characterized in that the method further comprises: the target network device saving and updating the D2D resource configuration information of the first terminal such that the D2D resource configuration information is still effective in a next handover process of the first terminal, if a serving PLMN of the first terminal after handover is consistent with any one of PLMNs in information of the allowed D2D PLMN list, the target network device continuously allocates D2D resources according to the D2D resource configuration information of the first terminal and maintains current D2D operation of the first terminal, wherein the D2D resource configuration information further comprises: the information of the allowed D2D PLMN list. the target network device saving and updating the D2D resource configuration information of the first terminal such that the D2D resource configuration information is still effective in a next handover process of the first terminal, if a serving PLMN of the first terminal after handover is consistent with any one of PLMNs in information of the allowed D2D PLMN list, the target network device continuously allocates D2D resources according to the D2D resource configuration information of the first terminal and maintains current D2D operation of the first terminal, wherein the D2D resource configuration information further comprises: the information of the allowed D2D PLMN list.