Abstract: AbstractToclarify the application effect of foliar fertilizers, Citrus reticulate Blanco was used as a test material to study the effects of spraying four kinds of foliar fertilizers(water-soluble fertilizers containing amino-acids treatment A, polypeptide fish proteintreatment B, organic selenium fertilizer treatment C and KH₂PO₄ treatment D）on plant growth and fruit quality. The results showed that after spraying the four kinds of foliar fertilizers there is no difference on inter node length of autumnal shoots, leaf length and leaf width.However, significantly increased the diameter of stem at the base.By measuring the fruit quality, we found that different foliar fertilizers had different effects on fruit quality ofCitrusReticulata Blanco. Compared with the control, treatment Asignificantly increased the contents of vitamin C, reducing sugar and total sugar, reduced the content of crude fiber and protein at the same time. Treatment B significantly increased the contents of total sugar, protein and crude fiber, reduced the content of vitamin C, reducing sugar and total acidity. Treatment C significantly increased the contents of reducing sugar, curde fiber, total sugar, protein and total acidity, reduced the content of vitamin C. Treatment D significantly increased the contents of crude fiber, protein and total acidity, reduced the content of soluble solids, vitamin C and reducing sugar. The overall effects of water-soluble fertilizers containing amino-acids was the best,The results provide theoretical basis for foliar fertilizers selection inCitrusReticulata Blanco industry.