A method for transmitting MU-MIMO pilot and data, comprising: constructing k streams of Single-User Multiple-Input-Multiple-Output, SU-MIMO, pilot and data in a case that Multi-User Multiple-Input-Multiple-Output, MU-MIMO, pilot and data are to be transmitted to at least two terminals on a same time and frequency resource; modifying parameters of demodulation pilot ports of the at least two terminals using a pilot configuration for SU-MIMO transmission of k streams; and transmitting the k streams of the SU-MIMO pilot and data to the at least two terminals, wherein the at least two terminals comprise a first terminal and a second terminal, the first terminal performs reception of L 1 streams of the MU-MIMO pilot and data and the second terminal performs reception of L 2 streams of the MU-MIMO pilot and data, wherein k = ∑ L i, and L i is the number of streams of the MU-MIMO pilot and data to be received by an ith terminal, and wherein the step of modifying parameters of demodulation pilot ports of the at least two terminals using a pilot configuration for SU-MIMO transmission of k streams comprises: modifying the number of layers RI of the first terminal to be RI=k and notifying the first terminal of the modification, wherein the number of layers RI is the number of layers or streams of spatial multiplexing when the first terminal performs data reception; in addition to L 1 demodulation pilot ports for the first terminal, setting L 2 virtual demodulation pilot ports for the first terminal, wherein the L 2 virtual demodulation pilot ports correspond to the L 2 streams of the MU-MIMO pilot of the second terminal and wherein the L 2 streams cannot be demodulated by the first terminal and are therefore virtual and insignificant for the first terminal; and configuring all Scrambling identity, SCID, values of the demodulation pilot ports on the same time and frequency resource to be 0 or configuring all SCID values of the demodulation pilot ports on the same time and frequency resource to be 1. constructing k streams of Single-User Multiple-Input-Multiple-Output, SU-MIMO, pilot and data in a case that Multi-User Multiple-Input-Multiple-Output, MU-MIMO, pilot and data are to be transmitted to at least two terminals on a same time and frequency resource; modifying parameters of demodulation pilot ports of the at least two terminals using a pilot configuration for SU-MIMO transmission of k streams; and transmitting the k streams of the SU-MIMO pilot and data to the at least two terminals, wherein the at least two terminals comprise a first terminal and a second terminal, the first terminal performs reception of L 1 streams of the MU-MIMO pilot and data and the second terminal performs reception of L 2 streams of the MU-MIMO pilot and data, wherein k = ∑ L i, and L i is the number of streams of the MU-MIMO pilot and data to be received by an ith terminal, and wherein the step of modifying parameters of demodulation pilot ports of the at least two terminals using a pilot configuration for SU-MIMO transmission of k streams comprises: modifying the number of layers RI of the first terminal to be RI=k and notifying the first terminal of the modification, wherein the number of layers RI is the number of layers or streams of spatial multiplexing when the first terminal performs data reception; in addition to L 1 demodulation pilot ports for the first terminal, setting L 2 virtual demodulation pilot ports for the first terminal, wherein the L 2 virtual demodulation pilot ports correspond to the L 2 streams of the MU-MIMO pilot of the second terminal and wherein the L 2 streams cannot be demodulated by the first terminal and are therefore virtual and insignificant for the first terminal; and configuring all Scrambling identity, SCID, values of the demodulation pilot ports on the same time and frequency resource to be 0 or configuring all SCID values of the demodulation pilot ports on the same time and frequency resource to be 1. modifying the number of layers RI of the first terminal to be RI=k and notifying the first terminal of the modification, wherein the number of layers RI is the number of layers or streams of spatial multiplexing when the first terminal performs data reception; in addition to L 1 demodulation pilot ports for the first terminal, setting L 2 virtual demodulation pilot ports for the first terminal, wherein the L 2 virtual demodulation pilot ports correspond to the L 2 streams of the MU-MIMO pilot of the second terminal and wherein the L 2 streams cannot be demodulated by the first terminal and are therefore virtual and insignificant for the first terminal; and configuring all Scrambling identity, SCID, values of the demodulation pilot ports on the same time and frequency resource to be 0 or configuring all SCID values of the demodulation pilot ports on the same time and frequency resource to be 1.