A field experiment was conducted to study the effects of calcium silicate fertilizer and impulsive seaweed liquid silicon fertilizer on the growth,yield and quality of rice ‘Yanfeng 47’. The results showed that the application of two kinds of silicon fertilizers increased the number of tillers,earring rate,lodging resistance and disease resistance,and improve the quality of rice. The highest yield,10 893 kg/ha,was gotten in C5 spraying treatment,and the second was 10 176 kg/ha in C1 basal treatment,which increased by 14.3% and 4.8%,respectively.