A base station device configured to form a cell to provide a wireless communication service to a user terminal within the cell, the base station device comprising: a handover threshold storing unit for storing a handover threshold for a transmission trigger of a measurement report, whereby the handover threshold is set for the user terminal that starts a wireless connection to the base station device, a load determining unit for determining whether a load condition indicating that a load of the base station device is high is satisfied or not, and a handover threshold change unit for changing the handover threshold so as to suppress a handover from the base station device of a user terminal which establishes a wireless connection with the base station device when it is determined that the load condition is satisfied, a terminal control unit for transmitting the handover threshold being stored in the handover threshold storing unit for setting the handover threshold for the user terminal, wherein the load determining unit is configured to determine that the load condition is satisfied when a CPU usage rate of the base station device is higher than a predetermined usage rate threshold and to determine that the load condition is not satisfied when the CPU usage rate of the base station device is lower than the usage rate threshold, and wherein the handover threshold change unit is configured to increase, when the load determining unit determines that the load condition is satisfied, the handover threshold for determining whether or not received radio wave intensity from a neighbor cell is stronger than received radio wave intensity from a serving cell by the handover threshold or more, such that the number of measurement reports received by the wireless base station is reduced and consequently the load of the base station for processing the measurement reports is decreased. a handover threshold storing unit for storing a handover threshold for a transmission trigger of a measurement report, whereby the handover threshold is set for the user terminal that starts a wireless connection to the base station device, a load determining unit for determining whether a load condition indicating that a load of the base station device is high is satisfied or not, and a handover threshold change unit for changing the handover threshold so as to suppress a handover from the base station device of a user terminal which establishes a wireless connection with the base station device when it is determined that the load condition is satisfied, a terminal control unit for transmitting the handover threshold being stored in the handover threshold storing unit for setting the handover threshold for the user terminal, wherein the load determining unit is configured to determine that the load condition is satisfied when a CPU usage rate of the base station device is higher than a predetermined usage rate threshold and to determine that the load condition is not satisfied when the CPU usage rate of the base station device is lower than the usage rate threshold, and wherein the handover threshold change unit is configured to increase, when the load determining unit determines that the load condition is satisfied, the handover threshold for determining whether or not received radio wave intensity from a neighbor cell is stronger than received radio wave intensity from a serving cell by the handover threshold or more, such that the number of measurement reports received by the wireless base station is reduced and consequently the load of the base station for processing the measurement reports is decreased.