In this study, analysis of burner flame for cement kiln is performed by using computational fluid dynamics(CFD). Flame shape, temperature distribution and NO_x/HCN formation are predicted to determine the performance of burners which P company designed. Type A burner has three concentric channels for swirl air, pulverized coal, and axial air in radial order. Type B burner has a special flame stabilizer at the center and channel for pulverized coal is relocated between flame stabilizer and swirl air. Velocity contours of both types show internal recirculation mear burner tip, which stabilizes the flame and assists early ignition. Due to strong swirling action, type A burner has a little divergent flame. On the contrary, the flame of type B burner is relatively slim and long. Temperature distribution core of type A burner flame. However, in the type B burner, NO_x is formed at the outer flame where secondary air is supplied and NO_x formation in the high temperature core is reduced by reducing atmosphere. The methodology and results suggested in this study could be successfully applied to not only design of burners but also optimization of operational conditions.