With the continuous development of coastal ports in China,the number of berths is growing,and the anchorage resources of port supporting facilities are increasingly scarce.Based on the port development demand in Que’er ao operation area of Toumen port area in Taizhou Port,the probability distribution of the arriving ships and the required number of anchorage spaces are estimated by assuming the utilization rate of berths,among which the most important is the small dangerous anchorage construction plan.Based on the analysis of seabed,traffic flow,wind,wave effects,water depth,and wave conditions,this article proposes two layout plans of small dangerous goods anchorage.By comparing the berthing and departure distance,the anchorage environment,and the connection with the local planning,a recommended anchorage layout plan is proposed,which provides strong support for the port development and construction of Que’er ao operation area.