The main manifestation of smiling depression in students is the presence of both depression and the presence of an outgoing personality, easy to smile and the impression of being lively and cheerful. The main manifestations of depression are the following: patients experience low mood, lack of happiness, lack of interest, easy mental fatigue and exertion, accompanied by loss of concentration, memory, as well as poor appetite, weight loss, and many problems with sleep, such as insomnia. Sometimes there is special pessimism and disappointment about the future, and in severe cases, negative thoughts, such as suicidal thoughts, may appear. If these manifestations are present, it is likely that there is a problem of depression, but some people are superficially particularly lively, cheerful, sunny, upbeat and positive, so people around them think that this person is particularly outgoing, and when this person has a serious depressive emotional experience, people around them will ignore it, and they may even ignore the problem themselves, and this disease may be the smiling type of depression.