Abstract: There are relatively few ship and fires, and moreover, fewer ship fires were investigated by fire and rescue agencies. Due to the influence of water, electricity, oil, gas, narrow hull space and complex structure, it is difficult to investigate ship fire. In this fire investigation, although the cause of the fire was quickly identified through surveillance video, investigation inquiry and on-site inspection, the investigation and analysis of the fire inducement experienced difficulties and twists. Ship fires are mostly related to people's unsafe behavior, but the links such as design and construction need to be improved. Through the investigation of this fire, it is also found that there are potential risks in the design, construction, acceptance and use management of the ship. Targeted optimization suggestions are put forward.

Key words: ship fire, fire investigation, fire cause