It is crucial to evaluate the performance of measures in sustainable fisheries using policy indicator systems. The Taiwanese government has implemented several measures; however, their effectiveness is limited. In the ecological dimension, officers (0.364) and scholars (0.368) regarded natural habitat (C4) as crucial in enabling the Taiwanese government to emphasize the promotion of marine-protected areas and positive community-based management [11] and [45]. In the production dimension, although measures such as fishing boat reduction (I6) and suspension of fishing activities (I7) have been implemented successfully, the net monetary return has not increased due to an increase in costs (I14). This shows that both policies require adjustments, especially with regard to targets ( Fig. 7). In the livelihood dimension, a decrease in the ratio of the average wage of fishers to the average civil wage (I23) has resulted in social issues, especially a decrease in the number of Taiwanese fishermen and an increase in foreign fishing crews. This has resulted in safety issues for the captains and crews of fishing vessels. Furthermore, illegal fishing and smuggling may have increased as a result of insufficient enforcement from a shortage of enforcement officers ( Fig. 8). Therefore, it is crucial for the Taiwanese government to acquire new patrol boats and to establish and strengthen institutions for the training of fishing enforcement officers to strengthen the enforcement of fisheries.