Energy-saving and emission reduction（Help me correct the mistakes please！thank you very much） Energy-saving and emission reduction as being an important part of ecological engineering is getting more and more attention.Energy saving is a long-term strategic policy in national economic development, and is the basic principle of iron and steel industry to achieve sustainable development. Sintering energy consumption is the second large energy consumption in the proportion of total energy consumption in iron and steel production, and blast furnace is the major energy consumer.Sintering is the big polluters in steel production, so taking measures to reduce furnace energy consumption and reduce emissions is the inevitable trend for the development of iron making technology. The effect of the pre-sintered energy conservation and emission reduction was exploratory researched based on the sintering and blast furnace cross-functional energy saving, so at last can achieve the goa, which is energy consumption and emission reduction by pre-sintering. By comparing the energy consumption between the traditional iron making process and new pre-reduction iron making processes, it can be learned that the flow of new blast furnace process consumes less about 250.22 kg ce than the traditional one, and save 48.89% energy consumption, the sintering process of new processes consume more 129.75 kg ce than the traditional process, coking process consumes less 20.42kg ce, and save 49.09% energy consumption, the whole process of new processes consume less 140.89kg ce than the traditional process, and at last can save 21.83% the energy. Therefore, pre-reduced iron sintering process can effectively reduce energy consumption. The result of the pre-reduction sintering simulation shows that the higher the sinter metal-fuel ratio, the higher the rate, the higher the degree of reduction. The reduction degree of pre-reduction sintering up to 78.59%, the highest rate of metal is 77.79%, the pre-reduction sintering purposes can be realized.