This paper conducts research on the optimization of the plane design of channels within the port area in response to the problem that there is no planned waiting anchorage or emergency anchorage in the coastal port area,and the current water area in the port is limited,making it difficult to separately arrange the emergency anchorage area for dangerous cargo vessels.Based on risk analysis,the requirements for emergency berthing and emergency evacuation of vessels,relevant regulations and the current conditions of the port water area,through site selection analysis,demonstration of different anchoring methods,and comparison and selection of several plane schemes,the rationality and feasibility of emergency berthing and evacuation of dangerous cargo vessels in the port area are studied.An optimization plane design scheme of the channel within the port area that meets the requirements of the regulations and is feasible,using the water area of the channel within the port as the emergency berthing area,is proposed.Through comprehensive analysis of actual cases,the optimized channel has a “general” navigation risk level.It meets the emergency berthing and evacuation requirements of the designed vessel type.The channel has good stability.It has a relatively small impact on the surrounding water area,and certain economic and social benefits.This provides certain reference value for the plane design and scale optimization of using the water area of the channels within the port area as the emergency berthing area.