The sintering return ore diversion process has changed the traditional process of adding all the return ores in the sintering batching room and improved the production efficiency of the sintering machine. The first set of sintering return ore diversion device in China is focused on, based on the Zenith sintering ingredients, and industrial tests on the impact of different proportions of return ore diversion on sintering are carried out. Under the condition of 16% internal return ore, the sintering index is better than that of the benchmark under the conditions of 0%, 3%, 6% and 8% of return ore diversion. At the 6% return ore diversion, the sintering index corresponding to the diversion is the best: compared with the benchmark, the ratio of mixed material +3 mm is increased by 5. 1%, the moisture of the mixture is reduced by 0. 2%, the negative pressure of sintering is reduced by 0. 4 kPa, the sintering production is increased by 3. 1%, and the drum index and RDI index are improved.