An adjustment apparatus provided in this application includes an obtaining unit, a storage unit, and a processing unit, where the processing unit is electrically connected to the obtaining unit and the storage unit; the obtaining unit is configured to obtain antenna position information; the processing unit is configured to obtain latitude and longitude of an antenna or an azimuth of the antenna based on the antenna position information; the storage unit is configured to store the latitude and longitude of the antenna or the azimuth of the antenna; and the processing unit is further configured to read and write the latitude and longitude of the antenna or the azimuth of the antenna in the storage unit according to an instruction of a remote control unit, and the processing unit is further configured to adjust an electrical downtilt of the antenna according to the instruction of the remote control unit.