These experiments were conducted to improve the effect of seed disinfection on rice seed severely infected Bakanae disease by seed soaking into mixed solution of prochloraz EC and fludioxonil FS. We investigated the effects of various concentrations of two fungicides mixed solution on spore germination and mycelial growth of Fusarium fujikuroi. Mycelial growth was inhibited 100% at 10 μg/ml of prochloraz and 33.3% at 80 μg/ml of fludioxonil. Spore germination was inhibited 81.4% at 40 μg/ml of prochloraz. Interestingly, mixed solution of 5 μg/ml or 10 μg/ml of each fungicide inhibitied 100% of mycelial growoth and 99.2% of spore germination, respectively. Severely infected rice seeds soaked into mixed solution composed of 125 μl/ml of prochloraz and 50 μl/ml of fludioxonil showed 2.1% of disease symptoms compared to 20.4% of prochloraz 125 μl/ml, but higher concentrations of prochloraz decreased the seedling stand rate. When the seed soaking time was longer and temperature was higher, control effect on Bakanae disease was improved, but seedling stand was lower about 80% over 35℃.