This study aims to determine and analyze the contribution of the forestry sector to the development of South Kalimantan Province in 2012-2016 by using the Green GRDP calculation approach. The study uses a descriptive method with quantitative data processing on secondary data. This data is supported by primary data which comes from the calculation value for unit rent, depletion, degradation and depreciation of legal logging activities in natural forest and plantation forest. The result of the study shows that the value of unit rent, depletion, degradation and depreciation per unit of production in natural forest is relatively much greater than the plantation forest. This value is around 81% in natural forest and 9% in plantation forest, so it is necessary to intensify the management of plantation forest for the supply of logs as well as an effort to reduce pressure on natural forest in South Kalimantan. The green contribution of the forestry sector to regional development is smaller or less than the contribution of the forestry sector in the calculation of conventional GRDP. It means South Kalimantan Province has sacrificed assets (natural capital) from depreciation of forest resources. The resources have not been calculated as the added value of the forestry sector in the calculation of conventional GRDP. The value of forestry sector revenue as compensation and incentives which comes from the forest and environmental resource depreciation value is relatively very small compared to the value for prevention and recovery. The contribution (value added) of the real forestry sector to the development of South Kalimantan Province is conducted by including the value of depreciation of forest resources around 119% of the GRDP. This value is listed in conventional GRDP.