Kelompok peduli pesisir memiliki peranan penting dalam rehabilitasi dan perlindungan hutan mangrove, khususnya berkaitan dengan upaya menumbuhkan aspek kelembagaannya. Studi ini bertujuan menganalisis kinerja kelembagaan, peran stakeholders, dan hak pemilikan hutan yang mungkin diwujudkan setelah rehabilitasi mangrove dianggap berhasil, serta untuk mendeskripsikan beberapa dimensi pentingnya sebagai model pengelolaan hutan mangrove. Penelitian dilakukan pada bulan September 2021 hingga Agustus 2022 di Kelurahan Setapuk Besar- Kota Singkawang, Kalimantan Barat, melalui suatu metode campuran: kuantitatif-kualitatif. Data kuantitatif dikumpulkan dari 78 responden warga komunitas pesisir dengan cara wawancara terstruktur, sedangkan data kualitatif diperoleh melalui wawancara mendalam terhadap informan kunci. Analisis data kuantitatif mengenai kinerja kelembagaan diukur dari proporsi warga yang mengetahui terhadap aturan utama perlindungan hutan mangrove, sedangkan secara kualitatif dilihat dari partisipasi anggota kelompok dalam rutinitas kegiatan rehabilitasi dan konservasinya. Hasil penelitian menunjukkan bahwa sistem kelembagaan telah berfungsi dengan baik, buktinya sekitar 90 persen warga pesisir mengetahui aturan perlindungan hutan mangrove di komunitasnya. Selain itu partisipasi anggota kelompok dalam aksi rehabilitasi atau konservasi melalui inisiatif kelompok merupakan faktor kunci keberhasilan. Dimensi penting dalam menjaga keberlanjutan konservasi mangrove di sekitar kota pesisir adalah melalui pemeliharaan kelembagaan lokal dan penumbuhan ekowisata. Tittle: Analysis of the Success of Mangrove Forest Management: A Case Study on Rehabilitation and Conservation by the Coastal Care CommunityCoastal care groups have an essential role in rehabilitating and protecting mangrove forests, particularly concerning efforts to grow their institutional aspects. This study aims to analyse the institutional performance, stakeholder roles, and forest property rights that may be realized after the success of mangrove rehabilitations, and to describe some of its essential dimensions as a model for mangrove forest management. This study was conducted in September 2021 until August 2022 in Setapuk Besar-Singkawang city, West Kalimantan, through a mixed methods: quantitative-qualitative. Quantitative data were collected from 78 respondents of the coastal communities using structured interviews, while qualitative data was gotten through in-depth interviews with the key informants. Quantitative data analysis, concerning the institutional performance is measured by the proportion of residents who know the main rules for protecting mangrove forests, while qualitatively it is seen from the participation of group members’ in their routine rehabilitation and conservation activities. The results showed that the institutional system has functioned well, as evidenced is around 90 percent of the coasta residents knowing precisely the rules for protecting the mangrove forest in their community. Besides, the group members’ participation in rehabilitation or conservation actions through group initiatives is the key to success. An important dimension in maintaining the sustainability of mangrove conservation around coastal cities is through the maintenance of local institutions and the growth of ecotourism.