This study aimed to analyze the socio-economic aspects of crab fisheries in Maginti Island, West Muna Regency. Data collection was carried out from March 2021 to December 2023. The data collected were the socio-economic aspects of crab fisheries, including the level of community education, the number of fishermen, income from crab fishing, crab production 2017 - 2023, crab prices during 2017-2023, and the crab trade supply chain. Data were obtained through in-depth interviews with stakeholders, including 62-74 fishermen, three local collectors, and two district-level collectors. Interviews were directly conducted with an open-ended question system based on data needs. Data analysis was carried out with a descriptive–quantitative approach. The study results showed that in the social aspect, crab fishermen's education is dominated by elementary school (S.D.) graduates, namely 61.29% in 2017 and 60.81% in 2023. In the economic aspect, most fishermen have a net income ranging from 1,000,000 – 2,000,000 IDR/month, which was affected by fluctuations in BSC prices. Crab prices from fishermen to collectors tend to fluctuate throughout 2017–2023. The average price of crabs per kg was 32,083.33 IDR in 2017, 36,166.67 IDR in 2018, 30,750 IDR in 2019, 23,750 IDR in 2020, 64,666.67 IDR in 2021, 31,083.33 IDR in 2022, and 44,791.67 IDR in 2023. Price fluctuations occurred since BSC fisheries in Maginti Island are part of the global fisheries supply chain that reaches the international market to America, China, and others. Fluctuations in the global BSC prices not only affected the prices locally but could increase fishermen's income by up to 11.25% which is >2,000,000 IDR/month from 2017–2023. The increase in income indicates that BSC fisheries in Maginti Island have supported the implementation of the sustainable development goals (SDGs), specifically SDGs-1, namely no poverty.