The effects of tillage method and soil conditioner interaction on peanut yield and quality were studied by field experiment with splitplot randomized block design. The results indicated that the ridge planting method increased the peanut yields by 5.7%～12.0%, compared with flat planting method. Obviously, soil conditioner application increased the peanut yield by 7.4%～18.6% in flat planting method, and 5.6%～25.6% in ridge planting method treatment, compared with control, respectively. According to the effect of improving the peanut yield, soil conditioner treatments was ranked as straw ash＞biological carbon＞humic acid. The study showed that the interaction of ridge tillage and soil conditioner application not only increased the peanut full pod number, 100pod weight, kernel rate, plant height, lateral branch length, branch number, valid branch number, but also increased the peanut kernel nitrogen, phosphorus and potassium contents, protein and crude fat yield as compared to control. In particular, the interaction of ridge planting method with straw ash treatment had relatively high peanut pod, peanut kernel protein and crude fat yield in this study.