To study the chemical constituents of flowers of Prunus mume.Compounds were separated by silica gel. Their structures were identified and elucidated by spectral analysis and chemical methods.Eight compounds were obtained and identified as benzoic acid (I), isorhamnetin (II), quercetin (III), kaempferol-3-O-beta-D-galactopyranoside (IV), isorhamnetin-3-O-beta-D-glucopyranoside (V), isoquercitrin (VI), hypericin (VII) and rutin (VIII).Among them, II-VII are isolated from this plant for the first time.