Indonesia has marine and water resources, but fishing crime is a threat. This article seeks to determine the function of Supervision of Marine and Fishery Resources (Pengawasan Sumber Daya Kelautan dan Perikanan/PSDKP) institutions related to the supervision of fishing activities in Central Java Province, find out the obstacles to supervision in fishing activities in Central Java Province, and identify and analyze the legal supervision that the authorities should carry out the law enforcement in the Central Java Province. This research was conducted using a normative juridical approach. The results of the study showed that: 1) the supervision of fishing activities was carried out in Central Java Province by the PSDKP by Law No. 45 of 2009, but supervision still uses inadequate infrastructure, 2) obstacles in supervision are infrastructure, budget, resources, human resources and lack of coordination between institutions, 3) legal supervision should be carried out by the apparatus is community empowerment and collaborating with other institutions.