A method for determining a reporting time of a channel status information, CSI, report, for user equipment, UE, comprising: receiving a configuration message from a base station, determining, according to the configuration message, identity information of at least one secondary cell that uses a PUCCH of a secondary cell to transmit a CSI report; receiving a secondary cell activation command from the base station to activate the at least one secondary cell; and determining, according to the type of the PUCCH that is used to transmit the CSI report of the at least one secondary cell and the secondary cell activation command, the reporting time of the CSI report of the at least one secondary cell; wherein determining the reporting time of the CSI report of the at least one secondary cell comprises: if the type of the PUCCH that is used to transmit the CSI report of the at least one secondary cell is a PUCCH of a secondary cell which is in an active state, starting after a preset time point after the secondary cell activation command is received, to report the CSI report of the at least one secondary cell; or if the type of the PUCCH that is used to transmit the CSI report of the at least one secondary cell is a PUCCH of a secondary cell which is not in an active state, starting after the at least one secondary cell is activated and after a preset time point after the secondary cell activation command is received, to report the CSI report of the at least one secondary cell. receiving a configuration message from a base station, determining, according to the configuration message, identity information of at least one secondary cell that uses a PUCCH of a secondary cell to transmit a CSI report; receiving a secondary cell activation command from the base station to activate the at least one secondary cell; and determining, according to the type of the PUCCH that is used to transmit the CSI report of the at least one secondary cell and the secondary cell activation command, the reporting time of the CSI report of the at least one secondary cell; wherein determining the reporting time of the CSI report of the at least one secondary cell comprises: if the type of the PUCCH that is used to transmit the CSI report of the at least one secondary cell is a PUCCH of a secondary cell which is in an active state, starting after a preset time point after the secondary cell activation command is received, to report the CSI report of the at least one secondary cell; or if the type of the PUCCH that is used to transmit the CSI report of the at least one secondary cell is a PUCCH of a secondary cell which is not in an active state, starting after the at least one secondary cell is activated and after a preset time point after the secondary cell activation command is received, to report the CSI report of the at least one secondary cell. if the type of the PUCCH that is used to transmit the CSI report of the at least one secondary cell is a PUCCH of a secondary cell which is in an active state, starting after a preset time point after the secondary cell activation command is received, to report the CSI report of the at least one secondary cell; or if the type of the PUCCH that is used to transmit the CSI report of the at least one secondary cell is a PUCCH of a secondary cell which is not in an active state, starting after the at least one secondary cell is activated and after a preset time point after the secondary cell activation command is received, to report the CSI report of the at least one secondary cell.