Seven sampling sites in vegetation primary succession of Hailuogou glacier recession site,Mount Gongga,were set for observation to analyze organic carbon content in vegetation,coarse woody debris and soil. Continuous observation and tests in this seven sites were also carried out. Result showed that the organic carbon storages in seven sites of the primary forest succession were: 889.3,8930.3,13 902.5,17021.5,19 699.9,26 121.9,3 4 587.4 g C·m~(- 2),and the ecosystem components ranged as vegetation > soil > coarse woody debris as comparing with the organic carbon storage. The carbon flux of soil respiration for the seven sites were: 326.7, 265.7,2 60.3, 382.5,555.6,774.9,1030.5 g C·m ~(- 2)·a ~(- 1) separately。In case of future climate change,soil respiration in different stages of succession will increase with temperature growth. The seasonal pattern of soil respiration in early stage of succession changes significantly and it would be more sensitive to climate change,while the variation tends to be more moderate in later succession. Total organic carbon storage of ecosystem showed a trend of increasing in succession,and the efficiency of carbon sink in later succession were stronger.