A method for receiving channel state information, comprising: receiving channel state information CSI that is reported by a user equipment through a physical uplink channel, wherein the reported CSI comprises at least one CSI report, and each CSI report of the at least one CSI report corresponds to one downlink carrier; determining a downlink carrier set that corresponds to the reported CSI, wherein each downlink carrier in the downlink carrier set corresponds to one CSI report in the reported CSI; and determining a CSI report of each downlink carrier in the downlink carrier set according to the reported CSI and the downlink carrier set, wherein the determining a downlink carrier set that corresponds to the reported CSI comprises: when at least one CSI report to be reported that needs to be reported by the user equipment on a same subframe corresponds to a same physical uplink channel resource, determining a set, which is formed by downlink carriers that correspond to all CSI reports among the at least one CSI report to be reported, as the downlink carrier set; and when the at least one CSI report to be reported that needs to be reported by the user equipment on the same subframe corresponds to at least two physical uplink channel resources, determining a set, which is formed by downlink carriers that correspond to a part of CSI reports among the at least one CSI report to be reported, as the downlink carrier set, wherein the part of the CSI reports corresponds to a physical uplink channel resource with the highest priority among the at least two physical uplink channel resources, characterized in that among the at least two physical uplink channel resources, the physical uplink channel resource with the highest priority is a physical uplink channel resource corresponding to a CSI report of a reporting type that has the highest priority, or a physical uplink channel resource corresponding to a CSI report of a downlink carrier that has the minimum carrier index. receiving channel state information CSI that is reported by a user equipment through a physical uplink channel, wherein the reported CSI comprises at least one CSI report, and each CSI report of the at least one CSI report corresponds to one downlink carrier; determining a downlink carrier set that corresponds to the reported CSI, wherein each downlink carrier in the downlink carrier set corresponds to one CSI report in the reported CSI; and determining a CSI report of each downlink carrier in the downlink carrier set according to the reported CSI and the downlink carrier set, wherein the determining a downlink carrier set that corresponds to the reported CSI comprises: when at least one CSI report to be reported that needs to be reported by the user equipment on a same subframe corresponds to a same physical uplink channel resource, determining a set, which is formed by downlink carriers that correspond to all CSI reports among the at least one CSI report to be reported, as the downlink carrier set; and when the at least one CSI report to be reported that needs to be reported by the user equipment on the same subframe corresponds to at least two physical uplink channel resources, determining a set, which is formed by downlink carriers that correspond to a part of CSI reports among the at least one CSI report to be reported, as the downlink carrier set, wherein the part of the CSI reports corresponds to a physical uplink channel resource with the highest priority among the at least two physical uplink channel resources, characterized in that among the at least two physical uplink channel resources, the physical uplink channel resource with the highest priority is a physical uplink channel resource corresponding to a CSI report of a reporting type that has the highest priority, or a physical uplink channel resource corresponding to a CSI report of a downlink carrier that has the minimum carrier index. when at least one CSI report to be reported that needs to be reported by the user equipment on a same subframe corresponds to a same physical uplink channel resource, determining a set, which is formed by downlink carriers that correspond to all CSI reports among the at least one CSI report to be reported, as the downlink carrier set; and when the at least one CSI report to be reported that needs to be reported by the user equipment on the same subframe corresponds to at least two physical uplink channel resources, determining a set, which is formed by downlink carriers that correspond to a part of CSI reports among the at least one CSI report to be reported, as the downlink carrier set, wherein the part of the CSI reports corresponds to a physical uplink channel resource with the highest priority among the at least two physical uplink channel resources, characterized in that among the at least two physical uplink channel resources, the physical uplink channel resource with the highest priority is a physical uplink channel resource corresponding to a CSI report of a reporting type that has the highest priority, or a physical uplink channel resource corresponding to a CSI report of a downlink carrier that has the minimum carrier index.