In the era of regional autonomy required to explore the economic potential in order to enhance regional economic growth. For the development of an economic sector in a region should be done, it would be more effective and efficient if it is based on the consideration of the relationships in all economic sectors in moving the economy as a whole. This study aims to identify the potential economic sectors in the province of South Kalimantan. The analytical method used is the analysis of backward linkages (backward linkage) and forward linkages (forward linkage). The data used are secondary data input-output table of 50 sectors of South Kalimantan province. Based on the analysis will be produced four classifications commodity that is known commodities that have forward and backward linkages high, commodity forward linkage has particularly high but lower backward linkages, commodities that have high backward linkages but low forward linkages, which has been linked to commodities forward and backward linkages low.