The present study explores the relationship between childhood psychological maltreatment and procrastination among college students and the mediating effect of time management disposition.The present study surveyed 682 college students from two universities with the Children's Psychological Maltreatment Scale, Aitken Procrastination Questionnaire, and Adolescence Time Management Disposition Scale.There are significant positive correlations between childhood psychological maltreatment and undergraduates' procrastination (r = 0.197, p < 0.01), namely, individuals with more severe childhood psychological maltreatment are more likely to procrastinate. Time management disposition negatively correlates with childhood psychological maltreatment (r = -0.136, p < 0.01) and procrastination (r = -0.573, p < 0.01). The mediating roles of the time management disposition in the association between childhood psychological maltreatment and undergraduates' procrastination are significant.Time management disposition plays a mediating role in the relationship between childhood psychological maltreatment and college students' procrastination behavior.