Objective To study the effect of different personality on procrastination behavior of university students.Methods 126 university students were assessed by the General Procrastination Scale (GPS) and the big five personality inventory short form(NEO-FFI).Results GPS score of the student was(53.26±9.92).There were 84.9％ students respectively had different level of procrastination behavior.There were no significant differences in university students by gender and grades.There were significant negative correlation between procrastination and personality factor of conscientiousness (r=-0.563,P＜0.01) and significant negative correlation with agreeableness (r=-0.236,P＜0.01) and extraversion.The big five personality factors of conscientiousness can effectively predict the procrastination behavior of college students.Conclusion Procrastination is a very common phenomenon in the university students.The students with lower conscientiousness,agreeableness and extraversion of big five personality have more procrastination behavior.