A new peanut variety “ungsan”(Arachis hypogaea ssp. hypogaea L.) was developed at the Yeongnam Agricultural Research Institute, NICS, in Milyang in 2007. It was derived from a cross between a short stem cultivar “atonoka”and a high-yielding local cultivar “echeon” “ungsan”is the Virginia plant type. It has 18 branches per plant and 40 cm of main stem height. Each pod with long-ellipse shaped large kernel has two grains with light-brown testa and 100 seed weight was 95g in the regional yield trials (RYT). “ungsan”showed more resistant to web blotch compared with check variety. In the regional yield trials “ungsan”was outyielded in grain yield to the check variety by 16% with 4.45 MT/ha for grain.