A method for optimizing a tradeoff between capacity and coverage of a network, comprising: receiving statistical information and a first count that are sent by a base station, wherein the first count is the number of all user equipments UEs counted by the base station, the statistical information comprises information related to a coverage hole CH of the base station, wherein the statistical information comprises: the number of UEs in a CH area and a first identifier set formed of at least one base station identifier pair, the base station identifier pair comprises a first base station identifier and a second base station identifier, the first base station identifier is used for identifying a base station with a CH detected by a UE that fails to establish a link, and the second identifier is the identifier of the base station currently serving the UE; establishing at least one coverage cluster according to the received statistical information, and calculating cluster values of all the coverage clusters according to the first count and the statistical information, wherein each coverage cluster is formed according to a base station that appears the largest number of times in the first identifier set of the statistical information, and the cluster value is a CH value of each coverage cluster; acquiring an entire-network CH value according to the cluster values of all the coverage clusters; calculating an entire-network utility value according to the entire-network CH value; determining, according to the entire-network utility value, whether a capacity weight or coverage weight and an antenna downtilt of each base station in all the coverage clusters need to be adjusted; if the adjustment is needed, acquiring an adjustment value for the capacity weight or coverage weight of each base station and an adjustment value for the antenna downtilt of each base station according to an optimization strategy; sending the acquired adjustment value for the capacity weight or coverage weight of each base station and the acquired adjustment value for the antenna downtilt of each base station to a corresponding base station, so that the base station calculates the optimal pilot power according to the acquired adjustment value for the capacity weight or the coverage weight and the acquired adjustment value for the antenna downtilt. receiving statistical information and a first count that are sent by a base station, wherein the first count is the number of all user equipments UEs counted by the base station, the statistical information comprises information related to a coverage hole CH of the base station, wherein the statistical information comprises: the number of UEs in a CH area and a first identifier set formed of at least one base station identifier pair, the base station identifier pair comprises a first base station identifier and a second base station identifier, the first base station identifier is used for identifying a base station with a CH detected by a UE that fails to establish a link, and the second identifier is the identifier of the base station currently serving the UE; establishing at least one coverage cluster according to the received statistical information, and calculating cluster values of all the coverage clusters according to the first count and the statistical information, wherein each coverage cluster is formed according to a base station that appears the largest number of times in the first identifier set of the statistical information, and the cluster value is a CH value of each coverage cluster; acquiring an entire-network CH value according to the cluster values of all the coverage clusters; calculating an entire-network utility value according to the entire-network CH value; determining, according to the entire-network utility value, whether a capacity weight or coverage weight and an antenna downtilt of each base station in all the coverage clusters need to be adjusted; if the adjustment is needed, acquiring an adjustment value for the capacity weight or coverage weight of each base station and an adjustment value for the antenna downtilt of each base station according to an optimization strategy; sending the acquired adjustment value for the capacity weight or coverage weight of each base station and the acquired adjustment value for the antenna downtilt of each base station to a corresponding base station, so that the base station calculates the optimal pilot power according to the acquired adjustment value for the capacity weight or the coverage weight and the acquired adjustment value for the antenna downtilt.