This study explored the nature of using Facebook among the students of Comilla University. The overall purpose is to detect the using pattern and effects Facebook on their daily life. A survey was conducted on one hundred ninety (190) students' from the six faculties of the Comilla University. The primary data was collected by using a questionnaire during July to October, 2016. Majority of the respondents replied that they use Facebook for communication with different peoples, getting information, sending birthday greetings, job purpose and entertainment etc. Some of the respondents claimed that there is a lot of limitation of using Facebook like slow internet connection, expensive internet megabyte, less security of personal pictures, sometimes harassment by the hackers etc. This study also suggests that there is need for a national policy for the students in the university level to properly use the Facebook in their daily life.