Abstract: Abstract: The inhibiting effects of ethanolic extract and fractions were determined from Albizia julibrissin against the plant pathogens. The aim was to develop and utilize comprehensively agricultural substances of A. julibrissin leaves . Using growth rate methods, antifungal activity of A. julibrissin leaves was researched in this experiment. The results showed that the ethanol extract from leaves of A. julibrissin was effective against Valsa mali，Botrytis cinerea，Rhizoctonia solani and Colletotrichum capsici. The inhibition rates were 84.62，68.42，55.4 and 48.81% at 5.00 mg•mL-1, respectively. The antifungal activities of n-hexane, ethyl acetate, n-butanol partition and water from ethanol extracts showed that the most activity components were distributed in n-butanol extracts. The EC50 of n-butanol partition were 0.012 mg•mL-1 against V. mali. The n-butanol was the most active partition and could be acted as the emphases for further study.