| Procrastination is very common in daily life, and especially prevalent in university students. Procrastination also appears to be a troubling problem, chronic procrastination leads to poor performance and has a negative impact on individual's physical and mental health. Going an in-depth study to explore the motivation and related factors of procrastination, bettering the existing theory is extremely important and necessary, moreover giving a theoretical basis for clinical countermeasures.In the past, researchers studied the relationship between procrastination and self-esteem, self-efficacy, but did not divide procrastination into different types, and this might confuse the results of the study. Noticing this issue, in this study, the researcher distinguished the type of arousal procrastination from avoidant procrastination, based on the distinction, exploring the relationship of arousal procrastination, avoidant procrastination and self-esteem, self-efficacy, attributional style. Furthermore, different attributional style can result in different experience and evaluation, self-esteem and self-efficacy are as a subjective experience and evaluation, which means that attributional style may contribute to a mediation effect on the relationship of arousal procrastination, avoidant procrastination and self-esteem, self-efficacy. The mediation effect of attributional style was examined in this study.This study used questionnaires mainly to investigate 522 students in the university, and the conclusions were as following:1. Arousal procrastination was negative correlated with self-esteem and self-efficacy, positive correlated with external control significantly.2. Avoidant procrastination was negative correlated with self-esteem and self-efficacy, positive correlated with external control significantly.3. Stepwise regression analysis showed that: a different effect was found between the relationship of arousal procrastination, self-esteem, self-efficacy and avoidant procrastination, self-esteem, self-efficacy. Avoidant procrastination was a significant predieator of self-esteem and self-efficacy, but arousal procrastination could not predict low self-esteem and low self-efficacy.4. External control had a significant mediation effect on the relationship between arousal procrastination and self-esteem, self-efficacy.5. External control had a significant mediation effect on the relationship between avoidant procrastination and self-esteem, self-efficacy. |