Abstract: A test on applying magnesium and boron fertilizer in the taro ‘Liuyuehong’ was carried out. The results showed that the application of magnesium fertilizer and boron fertilizer could improve the main characters of taro ‘Liuyuehong’, and the yield increased by 4.95% and 4.74% respectively, the income increased by 495.68 yuan/667 m² (7435.2 yuan/hm²) and 474.12 yuan/667 m² (7111.8 yuan/hm²)respectively.