This paper represents the annual report of a multi-member longline survey on Patagonian toothfish (Dissostichus eleginoides) at Division 58.4.4b in the 2017/18 fishing season by France and Japan. One fishing cruise by French vessel (Ile Bourbon) took place in March 2018 and caught 1.6 tonne of D. eleginoides in 58.4.4b_2. The data set, C2 and Observer data, was provided by the CCAMLR Secretariat on the 3th August, 2018. In this paper, the data set during current fishing season (2017/18) was used for reporting the quantity of data, samples collected, and results of quick analysis as a progress toward research millstones. The research operations at 58.4.4b have not yet been completed in the 2017/18 fishing season. Also, some data is not reflected in tables and figures because it is still under process.