In order to determine the minimum elevation of the lowest deck of different types of fishery platforms, through analyzing the structural characteristics of various types of fishery platforms and combing the relevant requirements of different domestic and foreign standards on the deck elevation of fishery platforms, the calculation method of the minimum deck elevation of various fishery platforms is summarized. Aiming at the fishery platform with insufficient deck elevation, this paper analyzes the harm to the fishery platform from structural strength, stability, life saving equipment and operation safety, and puts forward corresponding remedial measures to ensure the essential safety of the platform and the life of the passengers to the maximum extent.