The university stage is a period when college students' psychology is gradually mature, but it is still in an immature, unstable and unbalanced stage. So, what are the psychological characteristics of college students? A: Psychological characteristics are determined by the degree of psychological maturity, that is to say, the higher the degree of psychological development, the less mature the psychology, and the more vulnerable it is. The emotions of college students with intense and complicated emotions are no longer as naive, simple and straightforward as those of primary and secondary school students, but more introverted and implicit. In addition, sensitivity, self-esteem and like to express themselves are also outstanding emotional characteristics. With the improvement of college students' cognitive level, the basic formation of personality and the expansion and deepening of social communication, college students' personality tendency is becoming more and more mature, and their self-evaluation, self-education and self-control abilities are constantly developing, showing a gradually stable state in terms of will, emotion and reason, and consciously cultivating good personality, especially the self-cognitive ability and self-control ability of boys and girls are improved. The core problem of college students' psychology is the sudden increase of self-consciousness, which is the central problem of college students' psychological characteristics. Around this core issue, students' main psychological processes and characteristics such as cognition, will, emotion and personality are in a dynamic adjustment process, from passive adjustment in the past to active self-adjustment. Therefore, their psychological changes are the most complicated and fluctuating period in their lives. In this process, people can feel psychological changes, which can also be understood as various changes in psychological life.