Erikson's psychosocial development theory for the first time extends the formation and development of psychology to the whole life of human beings and divides the development of life into eight stages, so that people can not only look forward to the future but also look back on the past in the course of life development.It also sums up the core tasks and crises faced by people at each stage of development, which provides theoretical reference for education of different age groups, and has great guiding significance for family education, social education and even school education.