The generation conditions and rules of nitrogen oxides are obtained by studying its formation mechanism in glass furnace.According to the different formation reasons of nitrogen oxides,the layered combustion technology,phased combustion technology and low nitrogen combustion spray-gun technology were proposed in order to reduce the formation of nitrogen oxides in the combustion process.The generation amount of nitrogen oxide can be reduced by more than 30%,and the energy saving is 2%to 3%.through the application of this technology in the glass production line.