Abstract: Sousa chinensis(Osbeck,1765)is a species of Sousa genus,which is found in the South China Sea,the East China Sea and the Yellow Sea.Some scientists have done much systematic study on skull and body external morphology.To deeply study the skeleton of Sousa chinensis, in this paper,a Sousa chinensis sample from Guangdong Pearl River Estuary Chinese White Dolphin National Nature Reserve was anatomized,and a set of skeleton sample was obtained,which was measured overall.The order is anatomy-taking bone-cooked-skim with alcohol-skim with gasoline-string together.The results showed that the maximum height,the maximum width and the maximum thickness scales of V type skeleton of Sousa chinensis became larger gradually first,then became smaller gradually,and the significantly quadratic function(R²=0.864 1)was found between the weight and length of lumbar spine.The significantly power functions(R²=0.964 6,R²=0.912 8)were found between the weight and height and between the weight and length of caudal vertebra.The significantly exponential function(R²=0.970 9)was found between the weight and width of caudal vertebra.The quadratic function could be well used to fit the correlation between the weight and maximum height of the V type bone(R²=0.754 6).The left rib and right rib were symmetrical.