This study aimed to analyze the impact of rehabilitation projects on the taxonomic composition of Burullus Wetland. Published secondary data covering the lake's production from 1998 to 2021 underwent descriptive analysis. The primary data were collected and analyzed through a cost-benefit analysis. The findings revealed a significant increase in the total production of Burullus Wetland, particularly in key species such as tilapia and grass carp, accompanied by a noteworthy decrease in catfish production after rehabilitation. This indicates a negative impact on certain fish speciesBased on the evaluation results, all fishing nets generate positive net income. Moreover, legal nets demonstrate superior efficiency when compared to their illegal counterparts. The results underscore the considerable relative importance of tilapia production in Burullus Wetland, emphasizing the need to balance development and environmental preservation to enhance lake efficiency and maintain species diversity. Preserving the class composition of fish is similarly crucial. Further studies are needed after the completion of this phase to precisely determine the impact of disinfection and development operations.