The invention provides a sintering machine distributing device applied to the technical field of iron and steel smelting equipment parts, and further relates to a distributing method using the sintering machine distributing device. A sintering mixing tank (3) is arranged on the upper portion of one side of a sintering machine body (1) of a sintering machine. A round roller feeder (4) is arranged under the sintering mixing tank (3). A distributing device body (5) is arranged under the round roller feeder (4) and composed of a plurality of distributing rollers (6). A distributing face (8) is formed by the upper surfaces of the multiple distributing rollers (6). The bottom of each distributing roller (6) is connected with an adjusting part (7) through a connecting base (9). According to the distributing device and the distributing method, particle segregation and sinter bed particle uniformity of a sinter mixture are achieved advantageously, the bed breathability is improved, sintering solid fuel consumption is reduced advantageously, and the sintering production cost is reduced.