Marine airbag is a new type of product developed independently in China which has been widely applied to ship upgrading and launching operation of ships, or help to float the stranded ships or to carry the heavy loads etc. Over more than 20 years of development, the marine airbag has become one of important choices for ship owners due its excellent performances and features including not limited by space, no need for large-size equipment, high efficient and simple operation and smaller investment etc.