The invention discloses an antenna adjustment method and device. The antenna adjustment method comprises the steps of determining a first region requiring network performance index adjustment; determining a second region according to the coverage of an antenna; determining an antenna in the first region and the second region to be an adjustable antenna; determining a region capable of being influenced by the adjustable antenna to be a third region, wherein the third region does not comprise the first region and the second region; determining network performance indexes in the first region, the second region and the third region; predicting the network performance indexes after adjustment is performed on working parameters of the adjustable antenna, and determining working parameters which enable the network performance index in the first region to reach a preset value and enable the network performance indexes in the second region and the third region to be within a preset range; and adjusting the adjustable antenna according to the working parameters. By adopting the antenna adjustment method and device, batched overall adjustment can be realized for an azimuth angle and a downward inclination angle of batch cells, and working parameters for the network optimum performance are achieved.