On the one hand, the particularity of navigation profession has cultivated and exercised the perseverance and tenacity of seafarers, and at the same time it has brought many unfavorable factors to their physical and mental health. Adapting to and adjusting the life at sea and one's own functions is very important for maintaining the physical and mental health of seafarers and the safety of ship operation. Due to the particularity of the navigation profession and the influence of the working and living environment of ships, the psychological load of seafarers is extremely heavy, which is mainly manifested in the following aspects: First, the scope of seafarers' activities is narrow, and they spend more than 80% of their time in this Xiaotian land every year. Although the duty system stipulates taking turns to rest, it is impossible to have a big environmental change, and the duty cycle is endless, the schedule is different, and the pace of life is impermanent. The circadian rhythm changes constantly, the seasons change constantly, and the biological rhythm of seafarers changes frequently, which is easy to cause psychological diseases such as anxiety and boredom. Second, the noise of the ship during navigation is all-weather. The living quarters on the ship are close to the main engine, generator and auxiliary engine all day, and the noise and vibration they produce constantly act on seafarers, making them restless for a moment. Due to the continuous effect of noise, hearing loss and mental fatigue are caused. Low-frequency noise will also reduce seafarers' adaptability to monotonous work. 3. Air pollution, extreme heat, insufficient light, etc. It will increase the psychological load of seafarers, reduce work efficiency and affect their mood and health. Fourthly, monotonous work, single male group and monotonous environment cause seafarers' depression, boredom, fatigue and insecurity; Causes emotional instability, irritability, aggression, quarrels and fights, indifference, stubbornness, retreat, dullness and other psychological troubles, which leads to bad behavior and diseases. Fifth, interpersonal communication is difficult. Strict hierarchy and fixed roles, especially the influence of personality and cultural differences between seafarers. Due to the particularity of sailing occupation and the influence of working and living environment on board, many unfavorable factors are brought to seafarers' physical and mental health, among which psychological diseases, depression, mental burnout and other adverse reactions are particularly prominent. Psychological diseases and adverse reactions such as depression and mental burnout have both physiological and psychological reasons. For most people, there are some promoting factors in both aspects. These factors have cumulative effects, so any one of them will play a role, even if it is not important to you, such as stress, like straw. If it is too heavy, it will break the camel's back. Therefore, it is necessary to make necessary adjustments through various channels in time. It is particularly important to maintain good psychological quality at all times in ship life. Good psychological quality is a necessary condition for people to engage in social activities, and it is also a prerequisite for people to give full play to their language and communication skills. On the contrary, poor mental state will form some barriers and obstacles, which will hinder making friends and adapting to the environment to a certain extent. Therefore, we should pay attention to self-cultivation in our work and life, and strive to overcome all kinds of morbid psychology in interpersonal communication. In the ship's work and life, we should actively communicate with others, take the initiative to approach others, respect others, help others enthusiastically, and narrow the life distance with others in order to establish reliable interpersonal relationships. When a reliable interpersonal relationship is established, there will be people around you who can be trusted to help you get the necessary emotional support and get rid of the mental illness and the harm of adverse reactions. In order to avoid depression, boredom, fatigue, insecurity and other psychological pressures caused by the monotonous living environment on board, seafarers should actively bring joy into the life on board and do what they like. No matter how busy you are at work, you should find time to relax and do something that makes you happy. Because immediate happiness can help you prevent depression in the future. Bringing happiness to life is one of the basic strategies to have a good mood. Being clear about your values and goals is sometimes a good way to get rid of depression. If you are prone to depression and distress, you should check your life goals and values, and how you work and live. Knowing your values and goals can help you evaluate whether your current work and life are in line with your values. If not, we should make timely adjustments according to our actual situation, so that we can choose the most favorable reform plan and get rid of depression and distress. The realistic factors of the working and living environment on board can easily lead to poor sleep, loss of appetite and depression, because the influence of daily activities and the working and living environment on board consumes your energy and will soon crush you. Insomnia is a very common consequence of depression, which in turn makes you prone to depression and other bad psychology. Therefore, when you are in a good mood, you should develop and maintain good habits on board, and pay attention to sleep, diet and exercise. Face the work and life of the ship with an optimistic and positive attitude, and work and rest on time according to your actual situation; Pay attention to strengthen the intake of nutrition and essential vitamins in the usual diet, reduce the dependence on tobacco and alcohol, and maintain a good and healthy body; In addition, we should pay attention to moderate exercise, because exercise can prevent the occurrence of bad psychology such as depression, help to enhance physical strength, and can also quickly improve mood and buffer depression in a short time. Timely mediation of seafarers' psychological diseases and adverse reactions is very important for seafarers' physical and mental health and ship operation safety.