There are usually two types of wharves for berthing tugboats：floating and fixed. Because tugboats are similar in appearance to small passenger and cargo ships，fishing boats，yachts，etc.，there were few special design requirements and research results for tugboat terminals in the past. They were mostly designed in accordance with the current standards for passenger and cargo wharf with abundant domestic and foreign research results and relatively clear design requirements，or designed with reference to similar dock specifications. However，after all，tugboats have their own characteristics and unique functions，and it is necessary to provide a dock design specifically for tugboats to dock. This article uses a domestic northern seaport fixed tugboat dock design project as a case to analyze the characteristics of tugboat ships and their berthing requirements. Drawing lessons from the design and use experience of similar piers，some problems encountered in the design of fixed tugboat piers are solved.