Triterpenes, flavonoids, lignans, sterols, pyridine derivatives, fatty acid glycerides, tannins and polysaccharides have been isolated from the methanol extract of Albizia Julibrissin. There are not many flavonoids from Albizia Julibrissin , including quercetin 3-O-galactoside, quercetin 3-O-rhamnoside, quercetin, 3′,4′,7-three Hydroxyflavonoids, L-catechol, D-catechol, and anthocyanin 3-glucoside.