Abstract: Taking Satian Pomelo tree from Lizhi orchard in Rongxian county as material, the corresponding correct fertilization experiment and demonstration has been conducted according to the status of soil and leaf nutrition diagnosis. The results showed that the average yield for correct fertilization was 2 642.6 kg per 667 m2. It increased 13.01% than last year （2 339.2 kg）and increased 19.03% than the control. The soluble solids content increased by 1.7% and loss rate dropped to 0.8%. It had Rich flavor and better quality compared with the control.