Indonesia has ratified the international regulations concerning the competence of fishing vessel crews in the form of Standard of Training, Certification and Watchkeeping for Fishing Vessel Personnel (STCW-F) 1995. Many Indonesian fishermen’s competences are not up to standard. The study was conducted on non-conventional fishing vessels because in Indonesia the numbers are dominated.The purpose of this research is to identify and map the competency quality of non-conventional Fishing Vessel Crew in Pati Regency and Pekalongan City with regard to the marine certificates owned by ship crews according to the STCW-F standard. The analysis uses content analysis of regulations and Gap analysis of expertise competence for the Skipper, Chief Engineer, Chief Officer and First Engineer for Purseiner 30-100 GT in Pati and Pekalongan against Minister of Maritime Affairs and Fisheries Regulation Number 33 of 2021. The results show in Pati district and Pekalongan City: the competence of masters is 66.9% and 81.4%, Head of Engine Room 23.1% and 30%, Chief officer 66.9% and 9.1%, and First Engineers are 4.1% and 0%. Recommendations for the fulfillment of the provisions of the Expertise Competency Certification according to the ministerial regulation are by: increasing Awareness, increasing extension of the importance of certification,and strict enforcement of certification rules.