This internship is mainly to study marine survey instruments, sample collection and measure parameters on-site; conduct physical field measurement of physical ocean flow, temperature, salt and depth, and master the basic skills of marine scientific research. To learn the basic knowledge of marine chemistry, physical oceans, and marine organisms in the sea, to master the basic skills of marine surveys, sample preservation and data analysis. At the same time, by overcoming the difficulties caused by the inconvenience of the sea and the inconvenience of life at sea, we will cultivate students' awareness of hard work and teamwork, and train students to find problems and solve problems by themselves.