Introduction: The purpose of this research was to examine the effectiveness of time perspective therapy on motivational strategies and cognitive in procrastinated students. Method: Design of this experimental research was pretest-posttest associated with control group. Instruments of the present study includes the Zimbardo Time Perspective Questionnaire, Zusho and Barnett procrastination Motivational-cognitive Questionnaire (2011), and Tuckman and Brousse Questionnaire (1991). Statistical population consists of all the students studying at Persian Gulf University in the academic year 2015-2016; and 300 of them were selected by multistage cluster sampling and responded to the academic procrastination scale (TPS). Then by using cutting point, 36 procrastinated girl students were randomly assigned to two experimental and control groups. Time perspective therapy (six sessions) was considered as an independent variable based on the Zimbardo protocol (2012). To analyze the data, Multivariate Covariance Analysis was performed using SPSS software. Findings: The results of the research showed that time perspective therapy improvement of motivational and cognitive strategies and procrastination in the experimental group compared with the control group. The results of ANCOVA analysis showed that through controlling pretests, there is a meaningful difference between posttests of mastery goals, performanceapproach goals, need for cognition, procrastination, expectation for success, task value, rehearsal, organization and metacognitive selfregulation in experimental and control groups. But there was no significant change in the avoidance goal variable (p = 0. 19). Conclusion: Based on the results Time Perspective Therapy is an effective therapeutic approach to increasing motivational strategies and cognitive in procrastination girl students.