The influence of different sintering process parameters on the NO_x production and sintering of the main technical and economic indexes were studied through sintering cup experimental device. The results showed that, As the mixture alkalinity, moisture, material thickness, the proportion of the fuel ratio increases and the fuel ratio decreases, the concentration of NO_x in the flue gas tends to decrease. Meanwhile, the modification of these parameters has no significant effect on sintering speed, utilization coefficient and the intensity of the drum.