To investigate the chemical constituents in flower bud of Artemisia scoparia.The constituents were isolated and purified by means of various chromatographic methods, and spectroscopic methods were used to identify their structures.Four flavones were isolated and their structures were identified as hyperin (V), eupafolin (VI), pedalitin (VII), 5,7,2',4'-tetrahydroxy-6,5'-dimethoxyflavone (VIII).Compounds V, VI, VII, VIII were obtained from this plant for the first time.