For the realization of the “Sustainable fisheries”, safety of the working in the field of fisheries is essential. In spite of that the meaning of that safety, the accidents during the fishing operations have frequently happened. The accident which happened in the fishing boat during raising the set net was researched in this report. The procedures of fishing operation and the activity associated with the accident in these processes were also analyzed. Through these researches and analysis, the ways to prevent the accidents in the fishing boat were considered.