Abstract: A test on different nitrogen application, different proportions of nitrogen, phosphorus and potassium, and different planting density were conducted in Yongding District of Longyan City. The results showed that:(1) The yield of 180 kg·hm^-2 N fertilizer application was the highest in the test of different application of nitrogen fertilizer (N:P₂O₅:K₂O was 1:0.3:0.75); (2) The ratio of nitrogen, phosphorus, potassium of 1:0.5:1 was the best in the test of different proportions of nitrogen, phosphorus and potassium, the comprehensive character of rice was good and the yield was the highest, which was 10.33 t·hm^-2; (3) In the test of different planting density, the highest yield was 10.21 t·hm^-2 while the planting density was 23.3 cm×26.6 cm.