Putri, Yolla Lizia Dwi2022-01-192022-01-192021-07wahyu sari yenihttps://repository.unri.ac.id/handle/123456789/10445The study period is duration it takes students to complete their education starting from the time they enter college until they are graduated. In general, a student is said to graduate on time if he succeeds in taking a study period of no more than 4 years. This study aims to identify that affect the length of study period of the 2015 FMIPA UNRI students. The research variables consist of five subgroups which are factors that are thought to affect the students study period. The five subgroups are gender, (male and female), GPA, regional origin, (Pekanbaru and outside Pekanbaru), type of SMA, (SMA, SMK, and MAN), and parental occupation. Method that can be used to determine these factors is Survival Analysis through the Cox Proportional Hazard regression model. Through parameter estimation in the procedure of forming the Cox Proportional Hazard regression model. In this study, it was found that the factors that significantly influence the length of student study are GPA and parents work is as a farmerenStudentstudy periodsurvival analysiscox proportional hazard regressionArticle