Anxiety is a common phenomenon among all kind of learners and university students. Study anxiety has been recognized by students of all educational institutes as they face new atmosphere and people in the campus. The objective of this study is to recognize the sources of study anxiety and then determine the impact of these sources on the grade achievements among university students. The results showed that exam anxiety, subject anxiety, language anxiety, library anxiety, social anxiety and presentation anxiety are sources of study anxiety. All of the sources have a great impact on grade achievements except presentation anxiety. The results proved that anxiety put a high impact on the grade achievements of students and those students who had more anxiety get low marks.