A new peanut variety ‘Sinpalkwang’ (Arachis hypogaea ssp. hypogaea L.) was developed at the Department of Southern Area Crop Science, National Institute of Crop Science (NICS) in Milyang 2012. This was developed from the cross between line ‘HP299’, crossed high yielding variety ‘Palkwang’ and short stem cultivar ‘PI156649’, and ‘Palkwang’. ‘Sinpalkwang’ which is a Virginia plant type had 25 branches per plant and its length of main stem was 41 cm. Each pod has two grains with brown testa and long ellipse-shaped large kernel. Its yield components showed 45 pods per plant, 92 g of 100-seed-weight and 79% of pod shelling ratio in the regional yield trials (RYT). Seed quality showed 45.4% of crude oil and 29.2% of protein content. This variety also showed more resistant to web blotch, compared with reference variety. In the regional yield trials for 3 years ‘Sinpalkwang’ was more productive than reference variety by 28% with 5.4 MT/ha for grain production.