Considering the poor soil fertility and low fruit yield in typical mango orchards，the effects of organic fertilizersubstituting for different quantities of chemical fertilizer on soil physical and chemical properties，leaf nutrition，fruit yield and quality of mango orchards were studied in order to provide technical support for scientific and rational applicationof chemical fertilizer in mango production. The results of field experiments showedthat，compared with conventionalfertilization，different substitution ratios reduced soil bulk density and increased soil total porosity in different soil layers.Thedecrease of soil bulk density and increase of total porosity in 0～ 20 cm soil layer were higher than those in 20～ 40 cm soil layer. Different substitution ratios increased the pH value and organic matter content in different soil layers.The pH value and organic matter content in 0～20 cm soil layer ofT2(30%)andT3(50%)were significantly different from those incontrol and T1(10%).Alkali-hydrolyzed nitrogen and conventional fertilization decreased，but did not reach significant difference.The contents of availablephosphorus，available potassium and exchangeable calcium and magnesium increased compared with control.Among them，in 0～20 cm soil layer，available potassium and exchangeable magnesium of T2(30%)and T3(50%)were significantly higher than those of conventional fertilization and T1 treatment.There was nosignificant difference betweenT3(50%)andT2(30%).The total nitrogen content of leaves in different substitution ratiosdecreasedslightly，while the other mineral elements contentincreased，but did not reach significant difference.The yieldwas increased by different substitution ratios，but the effect on single fruit weight was not significant.The soluble solids，Vc，solid -acid ratio in fruits in each substitution ratio increased.Compared with the control，the titratable acid content of the fruit decreased.Comparing comprehensively，T2(30%)treatment had better effects on improving soilfertility，yield and fruit quality.