1. Connecting working boats: the core function is the transfer of personnel and small materials. The deck is spacious and the seat is firm. It is suitable for the daily commuting of ports and oil field platforms. It is the most basic type of working boats;

2. Operation operation boat: equipped with special operation equipment, such as salvage boat, clean-up boat and navigation standard boat, which are targeted to meet the requirements of single operation and have strong professional functions;

3. Support boats: provide on-site support for large-scale water projects and maritime operations, equipped with simple dispatching, communication and life-saving equipment, taking into account on-site coordination and emergency support;

4. Heavy-duty working boats: mainly focus on material transportation, with heavy-duty reinforcement of hull structure and large cargo space, which is suitable for water transportation of large and small materials in ports, industrial and mining areas.