Objective: This study aims to determine empirically whether academic stress, lecturer competence, campus facilities and learning environment affect cyberloafing behavior in students in Purwokerto. Type of Research: This type of research is quantitative research. The sampling technique used proportional random sampling technique with the condition that students of universities in Purwokerto include UMP, Unsoed, UIN Saizu, and Telkom and must bring gadgets during lectures. Place and Time of Research: The research was conducted in Purwokerto from 10 december 2022 to 5 july 2024. Methodology: This research is conducted using a quantitative approach, the data obtained will be processed using SmartPLS software version 3.29. Each hypothesis will be tested using the Inner Model to determine the influence between variables. To test the validity and reliability of the research using the Outer model. Results: The results showed that there is a positive and significant influence between academic stress on cyberloafing behavior, a negative and significant influence between lecturer competence and cyberloafing, a negative but not significant influence on campus facilities and cyberloafing and a positive but not significant influence on the learning environment on cyberloafing behavior.