A sparse multiple transmitting and multiple receiving antenna array arrangement (100, 200) for an active millimeter wave security inspection imaging, comprising a set of transmitting antennas for transmitting millimeter waves and a set of receiving antennas for receiving millimeter waves transmitted by the set of transmitting antennas and reflected by a human body; wherein the set of transmitting antennas comprises a plurality of transmitting antennas arranged along a first row, the set of receiving antennas comprises a plurality of receiving antennas arranged along a second row, the first row of transmitting antennas of the set of transmitting antennas are arranged in parallel with the second row of receiving antennas of the set of receiving antennas, and the first row of transmitting antennas are spaced apart from and located in a same plane as the second row of receiving antennas; wherein at least one of the receiving antennas is arranged within a range, equal to a length of an interval between two adjacent ones of the transmitting antennas arranged along the first row, in the second row of receiving antennas such that the number of the transmitting antennas is less than the number of the receiving antennas; wherein the plurality of transmitting antennas of the set of transmitting antennas arranged along the first row sequentially are configured to transmit the millimeter waves one by one to complete a one-dimensional scan of the set of transmitting antennas, wherein the array arrangement is configured to displace in a direction orthogonal to a row direction of the set of transmitting antennas to perform a two-dimensional scan of the human body to obtain data for imaging; wherein an interval between two adjacent ones of the transmitting antennas arranged along the first row is greater than one times a wavelength of the radiation wave, and an interval between two adjacent ones of the plurality of receiving antennas arranged along the second row is not less than one times the wavelength of the radiation wave such that a total number of the transmitting antennas and the receiving antennas is reduced relative to a total number of the transmitting antennas and the receiving antennas where the transmitting antennas and the receiving antennas are arranged in pairs and the transmitting antenna and the receiving antenna pairs are spaced apart from each other by one times the wavelength of the radiant wave, characterized in that the interval between two adjacent ones of the transmitting antennas is greater than the interval between two adjacent ones of the receiving antennas. wherein the set of transmitting antennas comprises a plurality of transmitting antennas arranged along a first row, the set of receiving antennas comprises a plurality of receiving antennas arranged along a second row, the first row of transmitting antennas of the set of transmitting antennas are arranged in parallel with the second row of receiving antennas of the set of receiving antennas, and the first row of transmitting antennas are spaced apart from and located in a same plane as the second row of receiving antennas; wherein at least one of the receiving antennas is arranged within a range, equal to a length of an interval between two adjacent ones of the transmitting antennas arranged along the first row, in the second row of receiving antennas such that the number of the transmitting antennas is less than the number of the receiving antennas; wherein the plurality of transmitting antennas of the set of transmitting antennas arranged along the first row sequentially are configured to transmit the millimeter waves one by one to complete a one-dimensional scan of the set of transmitting antennas, wherein the array arrangement is configured to displace in a direction orthogonal to a row direction of the set of transmitting antennas to perform a two-dimensional scan of the human body to obtain data for imaging; wherein an interval between two adjacent ones of the transmitting antennas arranged along the first row is greater than one times a wavelength of the radiation wave, and an interval between two adjacent ones of the plurality of receiving antennas arranged along the second row is not less than one times the wavelength of the radiation wave such that a total number of the transmitting antennas and the receiving antennas is reduced relative to a total number of the transmitting antennas and the receiving antennas where the transmitting antennas and the receiving antennas are arranged in pairs and the transmitting antenna and the receiving antenna pairs are spaced apart from each other by one times the wavelength of the radiant wave, characterized in that the interval between two adjacent ones of the transmitting antennas is greater than the interval between two adjacent ones of the receiving antennas.