This research was conducted in the seaweed industries in South Sulawesi, especially in the Makassar industrial area (KIMA). The purpose of this study is to develop a strategy for developing seaweed commodity processing industries to increase added value. Analysis of the data used is using SWOT analysis. With SWOT analysis, it can produce several alternative strategies in making good decisions to be carried out. So that it can determine the development strategy of the seaweed industry. The results showed an IFAS score of 2.79 and a score for the EFAS results of 2.85. When converted into IE Matrix diagram, it is located in quadrant V, where the results of the company enter into the phase of Growth and Stability. The right strategy for companies in quadrant V is SO strategy, using a strategy that utilizes existing opportunities by utilizing the strengths they possess, namely by intensification and extensification of cultivated land, diversification of seaweed processed products and development of fishery products that have high added value including the biotechnology-based industry.