A gas-blowing-holes plate with a gas-blowing-hole array structure, for a soldering apparatus for soldering a board to be soldered by discharging gas from plural gas-blowing holes arranged in the gas-blowing-holes plate while a conveyed member, which mounts the board, is conveyed, wherein the gas-blowing-holes plate has a predetermined nozzle layout region (Ia; Ib); and the nozzle layout region is divided into four divided sections, that is a lower left (I,I'), a lower right (III,III'), an upper left (II,II') and an upper right (IV, IV') wherein in an arrangement pattern of the gas-blowing holes arranged in one of the divided sections, a first row is formed so that first and second gas-blowing holes are arranged with a predetermined width pitch along a direction that is orthogonal to a conveying direction of the conveyed member, plural other rows are formed with a predetermined row arrangement pitch the conveying direction with them being parallel to the first row, characterised in that the first gas-blowing hole in every other row is arranged with a predetermined space (p11, p12,p13) a width direction from the first gas-blowing hole in every other row, and the first gas-blowing holes the first row and other rows have such a configuration that they have different phases from each other on the orthogonal direction; and wherein in the upper left and right divided sections (II, IV; II', IV') and the lower left and right divided sections (I, III; I', III')relative to a center portion of the nozzle layout region in which the width direction and the conveying direction are orthogonal to each other, a first arrangement pattern of the gas-blowing holes (P1, P1') and a second arrangement pattern of the gas-blowing holes (P2, P2'), which is an inverse first arrangement pattern thereof, are provided so that the arrangement patterns that are arranged on a diagonal line in the nozzle layout region are identical. a first row is formed so that first and second gas-blowing holes are arranged with a predetermined width pitch along a direction that is orthogonal to a conveying direction of the conveyed member, plural other rows are formed with a predetermined row arrangement pitch the conveying direction with them being parallel to the first row, characterised in that the first gas-blowing hole in every other row is arranged with a predetermined space (p11, p12,p13) a width direction from the first gas-blowing hole in every other row, and the first gas-blowing holes the first row and other rows have such a configuration that they have different phases from each other on the orthogonal direction; and wherein in the upper left and right divided sections (II, IV; II', IV') and the lower left and right divided sections (I, III; I', III')relative to a center portion of the nozzle layout region in which the width direction and the conveying direction are orthogonal to each other, a first arrangement pattern of the gas-blowing holes (P1, P1') and a second arrangement pattern of the gas-blowing holes (P2, P2'), which is an inverse first arrangement pattern thereof, are provided so that the arrangement patterns that are arranged on a diagonal line in the nozzle layout region are identical.