Abstract: In this paper,effects of soil-cover cultures with peat soil at different adding proportion on the yield of Agaricus bisporus were studied, and its main nutritional component and amino acid content were studied for the first time. The results showed that soil-cover culture with peat soil could improve the yield and relative net income of white mushroom, and increase the contents of crude protein, total sugar, amino acid, essential amino, sweet amino acid and delicious amino acid in fruiting body. Among all the treatments, the treatment of 1 peat soil+2 red loam had the best effect in improving the yield, quality and production benefit of white mushroom.