| Perfectionism, interpersonal trust, social avoidance and distress are hot research areas in recent years. However, researches on the relationship between the three are not enough. The purpose of this research is to investigate the Medical students’ perfectionism, interpersonal trust, social avoidance and distress situation, and research the relationship between the three.First,do a brief literature review between the three and the relationship of them, on which putting forward the hypotheses. Taking439medical students from a university in Nanjing as the research object, applying The Chinese frost multidimensional perfectionism scale (CFMPS), interpersonal trust scale(ITS) and social avoidance and distress scale (SAD). According to the statistics, we can get the following conclusions:1. Medical students’ perfectionism parents expect (PE) dimension and personal standard (PS) dimension have significant differences with the previous general undergraduates research. There are differences in the demographic factors of medical students’ perfectionist.2. Medical students’ interpersonal trust score is low. There are significant differences between the sexes, and among different grades.3. There is a significant difference of SAD total score of the medical students in the dimension of whether the student is a leader or not. There are significant differences of medical students’ social avoidance subscales (SA) in the presence of grade dimension.4. There was a significant negative correlation between interpersonal trust and the dimension of organization (OR) of perfectionism, PE dimension, and negative perfectionism.5. There is a significant positive correlation between the total score and subscales of perfectionism and the SAD score and subscales.6. There is negatively correlation between medical students’ interpersonal trust and social avoidance and distress (SAD), social avoidance subscale (SA), social distress subscale (SD).7. According to the regression analysis of medical students’ the doubt of the action (DA) and interpersonal trust on Social Avoidance and Distress, the doubt of the action (DA) and interpersonal trust have good predictive role. |