The invention relates to multi-input multi-output-orthogonal frequency division multiplexing (MIMO-OFDM) sending and receiving equipment and a method thereof. The sending method comprises the following step that: pilot symbols are inserted according to a mode to form a physical resource block which has P OFDM symbols in time domain and Q subcarriers in frequency domain (P and Q are more than 1), wherein the mode comprises that a Q*P array corresponding to the physical resource block comprises at least two pilot addresses of each antenna; all pilot addresses are divided into a time domain direction and a frequency domain direction; the maximum time domain interval/maximum frequency domain interval among the pilot addresses of the same antenna is more than or equal to the pilot addresses of the same antenna closest to both ends of the array and the time domain-frequency domain interval between the closest ends; pilot symbols used in each antenna are inserted into the pilot addresses corresponding to each antenna; and OFDM data symbols are loaded in addresses except the pilot addresses. Pilot frequencies on each antenna do not interfere mutually; the expenditure is less; the performance is high; and the implementation is easy.
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