Forest biomass is very relevant to the issue of climate change. From the overall yield of forest carbon approximately 50% of which are stored in forest vegetation. In the highly vulnerable peat swamp forest fires, especially in the dry season, these circumstances resulted in destruction of forests and increase the amount of atmospheric carbon and reduce the potential for carbon stored in forests. In line with the Indonesian government's program to conduct carbon trading and fulfill the commitment to contribute to the global effort to meet the target of reduction in greenhouse gas emissions (GHG), the measurement of the potential of biomass, the content and carbon uptake is very important to conduct including in the peat swamp forests. Objective of studies examined the amount of biomass and carbon content and the amount of carbon dioxide absorbed. The method used to calculate the amount of biomass and carbon content and carbon dioxide uptake in these peat swamp forest use standard formula. The results showed the amount of biomass in the forest after the fire of peat swamp forest 13.21 tonnes / ha and the carbon content 6.61 tonnes / ha, and also as the absorption of carbon dioxide was as much as 24.26 tons / ha.