A method for optimizing a handover parameter, comprising: acquiring, by a base station, a global handover performance parameter R i, a local handover performance parameter n, and a handover parameter of an i th cell that are within a preset time; detecting, by the base station, a handover problem, existing within the preset time, of the i th cell according to R i and r i; receiving, by the base station, a global handover performance parameter, a local handover performance parameter, a handover parameter, and indication information for a handover problem, within the preset time, of each adjacent cell that are sent by all adjacent cells of the i th cell, wherein a global handover performance parameter of a j th adjacent cell within the preset time is represented by R j, a local handover performance parameter is represented by r j, the j th adjacent cell is any adjacent cell of all the adjacent cells of the i th cell, j = 1,..., J, and J is a quantity of all the adjacent cells of the i th cell; determining, by the base station, according to the handover problem of the i th cell, the handover problems of all the adjacent cells, and R i, r i, R j, and r j which are within the preset time, that the i th cell is a cell to be optimized; adjusting, by the base station, the handover parameter of the i th cell within a new preset time, through optimizing, according to R i, r i, R j, and r j, the handover parameter of the i th cell, and the handover parameters of the adjacent cells of the i th cell by using a Gaussian process regression method, the handover parameter corresponding to the handover problem of the i th cell, to acquire an optimized handover parameter of the i th cell within the new preset time. acquiring, by a base station, a global handover performance parameter R i, a local handover performance parameter n, and a handover parameter of an i th cell that are within a preset time; detecting, by the base station, a handover problem, existing within the preset time, of the i th cell according to R i and r i; receiving, by the base station, a global handover performance parameter, a local handover performance parameter, a handover parameter, and indication information for a handover problem, within the preset time, of each adjacent cell that are sent by all adjacent cells of the i th cell, wherein a global handover performance parameter of a j th adjacent cell within the preset time is represented by R j, a local handover performance parameter is represented by r j, the j th adjacent cell is any adjacent cell of all the adjacent cells of the i th cell, j = 1,..., J, and J is a quantity of all the adjacent cells of the i th cell; determining, by the base station, according to the handover problem of the i th cell, the handover problems of all the adjacent cells, and R i, r i, R j, and r j which are within the preset time, that the i th cell is a cell to be optimized; adjusting, by the base station, the handover parameter of the i th cell within a new preset time, through optimizing, according to R i, r i, R j, and r j, the handover parameter of the i th cell, and the handover parameters of the adjacent cells of the i th cell by using a Gaussian process regression method, the handover parameter corresponding to the handover problem of the i th cell, to acquire an optimized handover parameter of the i th cell within the new preset time.