From the new China was founded in December 2016, a total of 57 million soldiers discharged from active service in our country, and with each year hundreds of thousands of speed increasing. Soldiers will experience different degrees of psychological stress in the face of retirement events, leading to depression, anxiety and other emotional problems, which will affect their mental health. Based on this, the researchers found that demographic characteristics, coping styles, emotional regulation strategies, social support and other factors were related to the mental health level of ex-servicemen, and group teaching, individual counseling, group psychological counseling, psychological nursing, case work and other methods had better intervention effect on the psychological problems of ex-servicemen. But on the whole, there are limitations in the degree of concern, subject concept, research method and subject of the research on veterans.