This study was carried out to investigate the effects of herbicide treatment and seeding method on the forage yield, weed control, and persistency in the Artemisia princeps dominated pasture. It was arranged as a randomized block design with seven treatments(circled1 oversowing(control),circled2 glyphosate 4 ${ell}$/ha + oveysowing a circled3glyphosate 4 ${ell}$/ha + chiselreseeding, circled4 paraquat dichloride 3 ${ell}$/ha + oversowing,circled5 paraquat dichloride 3 ${ell}$/ha + chiselreseeding, circled6 dicamba 4 ${ell}$/ha + oversowing and circled7 dicamba 4 ${ell}$/ha + chiselreseeding), and conducted at National Livestock Research Institute in Suwon from June, 1985 to October, 1987. In the Artemisia princeps dominated pasture, the treatments of glyphosate 4 ${ell}$/ha before oversowipg or chisel reseeding controlled 80.7-83.3% of the Artemisia princeps, and for two years the average dry weight of Artemisiaprinceps greatly decreased, but dry matter(DM) yield of forage increased 57-96% than that pf control. In the herbicide treatments, the average DM yield of forage in the plots with chisel r e d i n g was significantly higher when compared to oversowing. The results in this study indicated that herbicide treatment was effective for the control of Artemisiaprinceps, and good renovation of grassland and higher DM yield of forage could be obtained by application of glyphosate.