The study examined academic procrastination and motivation on study habits of undergraduate of undergraduates in Olabisi Onabanjo University, Ago-Iwoye. Descriptive research design was adopted for the study. The population of the study comprised of undergraduate students drawn of the five faculties in Olabisi Onabanjo University main campus. Proportional sampling techniques was adopted to select six hundred undergraduate that participated in the study. The instruments used were Academic Procrastination Scale (APS), Study Habit Inventory and Academic Motivation Scale. Data generated from the participant were analysed using descriptive statistics such as simple percentage, Pearson Moment Correlation Coefficient and Multiple regression (Analysis of Variance). Findings from the study showed that there is statistically significant relationship between academic procrastination and study habits of undergraduate; there is statistically significant relationship between motivation and study habits of undergraduate. It was also revealed that there is statistically significant composite influence of academic procrastination and motivation on study habits of undergraduates. It was recommended that the attention of university management showed be drawn to the phenomenon of academic procrastination, through development of plans and strategies, which aimed at reducing this dangerous phenomenon.