Abstract: Through the field cuhivation , different density experiment of peanut was carried out to provide effect on yield and individual economic character.The results showed that with the growth of peanut density,per hectare yield on peanut grew too. when the density was 315 thousand hole per hm2,the yield was 3.38t.But with the increases of the density,the individual economic character appeared increased first and decreased later,when the density was 285 thousand hole per hmE,the individual economic character increased to a peak.