Abstract: Technical measures of reducing the NOx emission quantity in Yuhuan Power Plant are introduced,such as PM low NOx emission burner,MACT combustion system and SCR flue gas denitration technology.On this basis,NOx emission quantity is up to the standard of the international advanced level.The application of SCR flue gas denitration futher reduced NOx emission quantity,not only provide valuable experiences and datas for 1000 MW units,but also lay the foundation of its industrialization.