A method for processing Channel State Information, CSI, by a user equipment, comprising: receiving, by the user equipment, control signaling, from a base station, to instruct the user equipment to feed back channel information, wherein the control signaling includes indication information of a plurality of Channel State Information-Reference Signal, CSI-RS, resources for an aggregated feedback; performing, by the user equipment, channel estimation based on the plurality of CSI-RS resources obtained from the indication information and constructing a channel matrix according to a result of channel estimation; and determining, by the user equipment, CSI according to a preset Physical Downlink Shared Channel, PDSCH, transmission scheme over a CSI reference resource, a correspondence relationship between signals over the plurality of CSI-RS resources and signals on User Equipment-Specific Reference Signal, UERS, ports and the constructed channel matrix, and transmitting the CSI to the base station; wherein determining by the user equipment the CSI according to the preset PDSCH transmission scheme over the CSI reference resource, the correspondence relationship between signals over the plurality of CSI-RS resources and signals on UERS ports and the constructed channel matrix comprises: determining, by the user equipment, a pre-coding matrix according to the preset PDSCH transmission scheme over the CSI reference resource, the correspondence relationship a ̃ k, l 15 1 ⋮ a ̃ k, l 14 + P N, N = W ⁢ a k, l 7 ⋮ a k, l 6 + υ between signals over the plurality of CSI-RS resources and signals on UERS ports and the constructed channel matrix, and determining the CSI according to the determined pre-coding matrix, wherein a k, l represents a UERS signal transmitted on UERS antenna port {7,...,6 + υ} over the ( k, l)-th resource element, u represents the number of layers, k represents a sub-carrier index in frequency domain, and l represents an Orthogonal Frequency Division Multiplexing, OFDM, symbol index in time domain, a ̃ k, l represents a signal transmitted on CSI-RS antenna port {{15,...,14+ P 1} 1,{15,...,14+ P 2} 2,···,{15,...,14+ P N} N} over the ( k, l)-th resource element, {15,...,14+ P n} n represents CSI-RS ports included in the n-th CSI-RS resource, a port number ranges from 15 to 14 + P n, P n, represents the number of CSI-RS ports included in the n-th CSI-RS resource, N represents the number of CSI-RS resources, and W is 1 or represents a pre-coding matrix corresponding to resource elements of UERS antenna ports. receiving, by the user equipment, control signaling, from a base station, to instruct the user equipment to feed back channel information, wherein the control signaling includes indication information of a plurality of Channel State Information-Reference Signal, CSI-RS, resources for an aggregated feedback; performing, by the user equipment, channel estimation based on the plurality of CSI-RS resources obtained from the indication information and constructing a channel matrix according to a result of channel estimation; and determining, by the user equipment, CSI according to a preset Physical Downlink Shared Channel, PDSCH, transmission scheme over a CSI reference resource, a correspondence relationship between signals over the plurality of CSI-RS resources and signals on User Equipment-Specific Reference Signal, UERS, ports and the constructed channel matrix, and transmitting the CSI to the base station; wherein determining by the user equipment the CSI according to the preset PDSCH transmission scheme over the CSI reference resource, the correspondence relationship between signals over the plurality of CSI-RS resources and signals on UERS ports and the constructed channel matrix comprises: determining, by the user equipment, a pre-coding matrix according to the preset PDSCH transmission scheme over the CSI reference resource, the correspondence relationship a ̃ k, l 15 1 ⋮ a ̃ k, l 14 + P N, N = W ⁢ a k, l 7 ⋮ a k, l 6 + υ between signals over the plurality of CSI-RS resources and signals on UERS ports and the constructed channel matrix, and determining the CSI according to the determined pre-coding matrix, wherein a k, l represents a UERS signal transmitted on UERS antenna port {7,...,6 + υ} over the ( k, l)-th resource element, u represents the number of layers, k represents a sub-carrier index in frequency domain, and l represents an Orthogonal Frequency Division Multiplexing, OFDM, symbol index in time domain, a ̃ k, l represents a signal transmitted on CSI-RS antenna port {{15,...,14+ P 1} 1,{15,...,14+ P 2} 2,···,{15,...,14+ P N} N} over the ( k, l)-th resource element, {15,...,14+ P n} n represents CSI-RS ports included in the n-th CSI-RS resource, a port number ranges from 15 to 14 + P n, P n, represents the number of CSI-RS ports included in the n-th CSI-RS resource, N represents the number of CSI-RS resources, and W is 1 or represents a pre-coding matrix corresponding to resource elements of UERS antenna ports. determining, by the user equipment, a pre-coding matrix according to the preset PDSCH transmission scheme over the CSI reference resource, the correspondence relationship a ̃ k, l 15 1 ⋮ a ̃ k, l 14 + P N, N = W ⁢ a k, l 7 ⋮ a k, l 6 + υ between signals over the plurality of CSI-RS resources and signals on