Objective To investigate the effect of perfectionism on the procrastination of college students with Type A behavior pattern.Method 285 college students were surveyed with type A behavior pattern scale（TABP）

Aitken procrastination inventory（API）and multidimensional perfectionism scale（MPS）.ResultsThere was no significant difference in procrastination between type A and type B college students;type A students had higher scores in two MPS sub-scales and all dimensions than type B students and the differences were statistically significant（P<0.05）;each dimension of Type A behavior pattern was significantly correlated with dimensions of perfectionism;among type A students

"social provisions of perfectionism"had a negative prediction of procrastination

whereas"emotional dimension of perfectionism"had a positive prediction of procrastination.Conclusion College students with type A behavior pattern have higher tendency to perfectionism than students with type B behavior pattern.Perfectionism has a predictive function for procrastination among type A students.