Fishing vessels, namely fishing vessels, are collectively referred to as vessels engaged in fish fishing, processing and transportation. They are vessels engaged in fishing and collecting aquatic animals and plants, and also include some auxiliary vessels engaged in modern fishing production, such as vessels engaged in aquatic product processing, transportation, aquaculture, resource survey, fishery guidance and training, and carrying out fishery administration tasks.

Most fishing boats are small in size. However, in order to adapt to continuous navigation and operation in the wind and waves, it is required to have good stability, seakeeping and seaworthiness, and the structure needs to be particularly firm. The load capacity changes greatly during operation.