The study assessed the academic procrastination among students in the university of Bristol. The study enrolled 201 students from different ages, educational levels and country background. The study explored the prevalence of academic procrastination, and the reasons that render procrastinatory behaviors of university students, and the psychological influence that caused by procrastination. Findings showed that 97% students are affected by different effect of procrastination, 48% students “very often” or “always” procrastinate. Laziness, lack of motivation, stress, too much time internet use and difficulty of task are major identified reasons for academic procrastination. More than 80% students suffer from anxiety when they procrastinate.