This study aims to investigate the business diversification undertaken by seaweed processing cooperatives and analyze the variety of products and services offered. This study used a qualitative approach with in-depth interviews and participatory observation to collect data from seaweed processing cooperatives, namely the Utari Seaweed Cooperative (KRLU), which operates in various coastal areas of Bulukumba Regency. The results showed that seaweed processing cooperatives have successfully diversified their businesses to optimize the potential of their seaweed resources. This business diversification includes processing seaweed into various products such as processed foods. The cooperative also offers services such as educational tours, where people can learn about seaweed cultivation and processing. This diversification of businesses and services has provided economic and social benefits to the cooperative and local communities. The study concludes that the business diversification of the KRLU cooperative is an effective strategy for increasing the added value of its products and improving the cooperative's income. Recommendations from this study are to continue to encourage innovation in seaweed processing, increase the capacity of cooperative members through training and mentoring, and expand marketing networks to improve market access.