A base station type replacement method performed by a software defined radio, SDR, network management system, comprising: creating a blank target base station rack diagram in a view area in a source base station rack diagram according to a command of a new base station creation operation; and moving a graphical managed object, MO, in the source base station rack diagram to the target base station rack diagram according to a command of a graphical move operation, characterized by further comprising: storing service location keyword information of the MO in the source base station rack diagram and the target base station rack diagram, and configuring data of a target base station based on the target base station rack diagram during the graphical move operation to complete base station type replacement; wherein the MO comprises: a board, a remote radio unit, RRU, a connection cable representing a topological connection relationship, and a sub-object under the board; the method further comprising: changing the topological connection relationship in the target base station rack diagram according to a command of a drag and extend operation on the connection cable representing the topological connection relationship, and recording location information of the MO connected by the connection cable in the source base station rack diagram and the target base station rack diagram. creating a blank target base station rack diagram in a view area in a source base station rack diagram according to a command of a new base station creation operation; and moving a graphical managed object, MO, in the source base station rack diagram to the target base station rack diagram according to a command of a graphical move operation, characterized by further comprising: storing service location keyword information of the MO in the source base station rack diagram and the target base station rack diagram, and configuring data of a target base station based on the target base station rack diagram during the graphical move operation to complete base station type replacement; wherein the MO comprises: a board, a remote radio unit, RRU, a connection cable representing a topological connection relationship, and a sub-object under the board; the method further comprising: changing the topological connection relationship in the target base station rack diagram according to a command of a drag and extend operation on the connection cable representing the topological connection relationship, and recording location information of the MO connected by the connection cable in the source base station rack diagram and the target base station rack diagram. storing service location keyword information of the MO in the source base station rack diagram and the target base station rack diagram, and configuring data of a target base station based on the target base station rack diagram during the graphical move operation to complete base station type replacement; wherein the MO comprises: a board, a remote radio unit, RRU, a connection cable representing a topological connection relationship, and a sub-object under the board; the method further comprising: changing the topological connection relationship in the target base station rack diagram according to a command of a drag and extend operation on the connection cable representing the topological connection relationship, and recording location information of the MO connected by the connection cable in the source base station rack diagram and the target base station rack diagram.