This paper represents the final report of the multi-member longline survey on Patagonian toothfish (Dissostichus eleginoides) at Division 58.4.4b between 2016/17 and 2020/21 fishing seasons by Japan and France. The C2 and Observer data sets were provided by the CCAMLR Secretariat on July the 12th, 2021. In 2020/21 fishing season, both Japanese and French vessel could not conduct survey at Division 58.4.4b due to operational restrictions by COVID-19. This report mainly summarizes fishing activity and collected data. Although progress and achievements of each objective are reported, it is noted that there are ongoing studies that will be presented later in separate documents for future meetings.