The present disclosure relates to communication technologies and discloses a method for adjusting BO configuration and an EMS for use in a mobile communication network. The method includes: exchanging, by an Element Management System, EMS, information about BOs managed by other EMSs with each of the other EMSs; and negotiating with each of the other EMSs to adjust configuration of the BOs managed by each of the other EMSs according to the information about BOs received from the other EMSs. The embodiments of the present disclosure are applicable to adjustment and optimization of a BO in a mobile communication network.