Abstract: Purpose/Significance To strengthen government risk governance and emergency preparedness planning, and enhance the quality of emergency plans and the level of urban public safety emergency management, the fault tree analysis (FTA) method is applied to assess the completeness of emergency plans. Design/Methodology Firstly, a standard fault tree structure is established based on the concept of the whole process of emergency management; secondly, taking Fuzhou City as an example, the quantified standard fault tree structure is compared with the city’s existing Emergency Plans for Hazardous Chemical Tanker Transportation Accidents, and the missing basic events in the plan are investigated. The completeness of the emergency plan is assessed according to the investigation. Finally, the quantitative results of the completeness of the emergency plan are derived. Findings/Conclusions The emergency plan can be optimized and upgraded in following aspects: general rules and general analysis of the emergency plan, risk monitoring, warning and prevention, clean-up work, publicity, education, training and exercises, and annexes of the plan.