In order to reveal the genetic diversity of wild peach,we conducted an experiment to analyze the 6 quantitative characters (weight of stone,transverse and vertical length,stone shape index,stone tip length,thickness) and 4 qualitative characters (stone shape,color,freestone,surface smoothness) of 23 wild peaches from Guizhou Province,China.The results showed that:(1)There was abundant in genetic diversity on the stone quantitative characters of wild peaches in Guizhou.The range of variation of the weight of stone was 0.65 to 4.38 g with the highest coefficient of variation of 33.08%,and the coefficient of variation of stone shape index was as low as 7.56%.(2)There were differences in stone shape,color,freestone by observing the stone morphology.The stone shape was ovate,obovate or oblong;the color was light brown,brown or dark brown;the freestone was free,semi-free or cling.The surface smoothness of stone had smaller range of variation,they were intermediate.(3)Correlation analysis among stone traits showed that weight of stone was definitely notable positive correlated to transverse length,vertical length,thickness;stone shape index was notable positive correlated to stone shape and stone tip length.（4）Principal component analysis indicated that the cumulative percentage of the former three main factors reached to 84.01%,which basically summarized the stone traits main information.(5)Cluster analysis showed that 23 wild peach samples could be divided into five categories,the ‘Qinglong-1’ and ‘Pu’an-5’ had grouped separately,which indicated that the genetic background of them were completely dissimilar to others.