This paper represents the annual report of the multi-member longline survey on Patagonian toothfish (Dissostichus eleginoides) at Division 58.4.4b in the 2018/19 fishing season by Japan and France. The C2 and Observer data sets were provided by the CCAMLR Secretariat on the 7th August, 2019. In this paper, the data set during current fishing season (2018/19) was used for reporting the quantity of data and samples collected. The research operations at Division 58.4.4b have not yet been completed in the 2018/19 fishing season. Also, some data is not reflected in tables and figures because it is still under process.