自船舶發明以來，船舶安全一直都是重要的問題。每一次沉船事故都會造成巨大的危害，造成大量人員傷亡、財產損失、巨大的經濟損失以及無可補救的精神創傷。為了避免悲劇重演，已經完成了許多船舶安全工作和設計。本文章提出一種新結構的防沉船，船體具有船舶防沉浮力裝置之設計，於船體外壁周側設置複數氣囊，當船難發生而船舶欲翻覆或沉沒時，利用手動或自動方式快速使氣囊充氣，並於船體周側產生均勻浮力，阻止船舶傾斜翻覆及減緩船舶沉沒速度，藉此延長救援時間、提高乘客獲救率。

Since the invention of the ship, ship safety has always been an important issue. Every shipwreck will cause huge harm, causing many casualties, property losses, huge economic losses, and irreparable mental trauma. This article proposes a new structure of the anti-sink ship. We design an antisinking and buoyancy device, which can achieve the purpose of an anti-sink ship. It is mainly equipped with multiple airbags on the outer wall of the hull. When the ship is about or sink to crash, it can use manual or automatic methods to inflate the airbag quickly. In this article, uniform buoyancy is generated around the hull, preventing the ship from tilting and overturning and slowing the ship’s sinking speed, thereby extending the rescue time and improving the rescue rate of passengers.