The embodiment of the invention relates to the technical field of wireless communication, particularly relates to a data transmitting and receiving method and equipment, and aims at solving the problems in the prior art that multiuser MIMO open-loop transmission cannot effectively utilize all the antennas of a transmitting end and thus the capacity performance is poor. According to the method, an antenna port set corresponding to each terminal occupying the same time frequency resource is determined, wherein different terminals are corresponding to different antenna port sets; and the data flow of each terminal is transmitted through the antenna ports in the antenna port set corresponding to the terminal. Receiving signals obtained by superposition of the data flow of the terminals occupying the same time frequency resource are received; and the data flow in the receiving signals is demodulated according to the cancellation sequence of interference cancellation notified by network side equipment so that the data flow of the terminals can be obtained. Different terminals use the corresponding antenna port sets to transmit data in data transmission so that all the antennas of the transmitting end can be fully utilized, and the capacity performance is better.