A new flavonol glucoside, 4'-methoxy-2-phenyl-4- chromone-3-O-D-glucoside was isolated and identified from the flowers of Millettia zechaina. The aglycone, 4'-methoxy-3-hydroxyl- 2-phenyl-4-chromone was synthesized by a novel method and its structure established on the basis of physical and chemical characteristics. In addition some known glycosides of kaempferol, quercetin, malvidin, cyanidin and pelargonidin were also found, which were identified by standard procedures.