Abstract: Organic fertilizer （base fertilizer） plus chemical fertilizer is widely used in South China. Two fertilizer ways were design in Guangzhou Region, which were pig-dung plus chemical fertilizer and mushroom fertilizer plus chemical fertilizer. On the same fertilizing effects and irrigation condition, the CH₄ emission flux from paddy fieldswas monitored. The experiments show that, on the same rice production condition, CH₄ Emission could be reduced by using mushroom base fertilizer instead of pig-dung base fertilizer in paddy fields in Guangzhou Region.