Objective: To study the relationship between the individual psychological characteristic of medical students and the way parents bring up them. Methods: Data on SCL-90, 16PF,EMBU of 1550 medical students were analysed. Results: It is showed that girl students have experienced more of the parents' emotion, understanding and favouritism, while the boy students have experienced more of their parents' refusal, deny, punishment, severity and excessive interference. There are more only-one-children who experience parents' emotion, understanding, interference and excessive protection. Conclusions: Parents' bad breeding attitude and behavior influence children's psychological health and forming of the individual characteristic directly or indirectly