A method for reporting a handover scenario judgment parameter by User Equipment, UE, comprising: after a Radio Link Failure, RLF, occurs while the UE is in connection state in a Cell 2 of a base station 2, attempting, by the UE, a Radio Resource Control, RRC, re-setup in a Cell 1 of a base station 1, and sending an RRC re-setup request message to the base station 1; after the RRC re-setup attempted by the UE in the Cell 1 has failed and the UE has turned to an idle state, selecting, by the UE, a Cell 3 through cell selection, sending an RRC setup request message to a base station 3 to which the Cell 3 belongs, and initiating an RRC setup request in the Cell 3; after the UE has performed RRC setup in the Cell 3 successfully and has turned to the connection state, including, by the UE in an uplink message transmitted by the UE to the base station 3, a handover scenario judgment parameter comprising an Evolved Cell Global Identifier, ECGI, of the Cell 1, a time difference between a time the UE performs a handover to the Cell 2 and a time the UE initiates the RRC re-setup request in the Cell 1, and an ECGI of a cell where the UE stayed prior to entering the Cell 2, wherein the uplink message is a message that includes RLF-related measurement information, or the uplink message is a message that includes an indication of RLF-related measurement information, such that the base station 3 includes in an RLF indication message, the ECGI of the Cell 1, the ECGI of the cell where the UE stayed prior to entering the cell 2, and the time difference, and transmits the RLF indication message to the base station 2; and the base station 2 on a network side judges a handover scenario according to a timer of a UE context and the time difference, by: when the timer of the UE context indicates a value smaller than the time difference, judging a handover from the Cell 2 to the Cell 1 to be a too late handover; when the timer of the UE context indicates a value larger than the time difference, and a source cell where the UE performs the handover last time is the Cell 1, judging the handover from the Cell 1 to the Cell 2 to be a too early handover; and when the timer of the UE context indicates a value larger than the time difference, and the source cell where the UE performs the handover last time is another cell, judging the handover from the another cell to the Cell 2 to be a handover to a wrong cell. after a Radio Link Failure, RLF, occurs while the UE is in connection state in a Cell 2 of a base station 2, attempting, by the UE, a Radio Resource Control, RRC, re-setup in a Cell 1 of a base station 1, and sending an RRC re-setup request message to the base station 1; after the RRC re-setup attempted by the UE in the Cell 1 has failed and the UE has turned to an idle state, selecting, by the UE, a Cell 3 through cell selection, sending an RRC setup request message to a base station 3 to which the Cell 3 belongs, and initiating an RRC setup request in the Cell 3; after the UE has performed RRC setup in the Cell 3 successfully and has turned to the connection state, including, by the UE in an uplink message transmitted by the UE to the base station 3, a handover scenario judgment parameter comprising an Evolved Cell Global Identifier, ECGI, of the Cell 1, a time difference between a time the UE performs a handover to the Cell 2 and a time the UE initiates the RRC re-setup request in the Cell 1, and an ECGI of a cell where the UE stayed prior to entering the Cell 2, wherein the uplink message is a message that includes RLF-related measurement information, or the uplink message is a message that includes an indication of RLF-related measurement information, such that the base station 3 includes in an RLF indication message, the ECGI of the Cell 1, the ECGI of the cell where the UE stayed prior to entering the cell 2, and the time difference, and transmits the RLF indication message to the base station 2; and the base station 2 on a network side judges a handover scenario according to a timer of a UE context and the time difference, by: when the timer of the UE context indicates a value smaller than the time difference, judging a handover from the Cell 2 to the Cell 1 to be a too late handover; when the timer of the UE context indicates a value larger than the time difference, and a source cell where the UE performs the handover last time is the Cell 1, judging the handover from the Cell 1 to the Cell 2 to be a too early handover; and when the timer of the UE context indicates a value larger than the time difference, and the source cell where the UE performs the handover last time is another cell, judging the handover from the another cell to the Cell 2 to be a handover to a wrong cell.